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31100414022 = 23323316531237
BaseRepresentation
bin11100111101101110…
…101010100001000110
32222021102220201122000
4130331232222201012
51002143201222042
622142021450130
72150461104666
oct347556524106
988242821560
1031100414022
111220a411407
12603b570946
132c1835c362
1417106541a6
15c2054274c
hex73dbaa846

31100414022 has 128 divisors (see below), whose sum is σ = 74617528320. Its totient is φ = 9573759360.

The previous prime is 31100414017. The next prime is 31100414029. The reversal of 31100414022 is 22041400113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31100413986 and 31100414004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100414029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25141188 + ... + 25142424.

It is an arithmetic number, because the mean of its divisors is an integer number (582949440).

Almost surely, 231100414022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31100414022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37308764160).

31100414022 is an abundant number, since it is smaller than the sum of its proper divisors (43517114298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31100414022 is a wasteful number, since it uses less digits than its factorization.

31100414022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1949 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31100414022 its reverse (22041400113), we get a palindrome (53141814135).

The spelling of 31100414022 in words is "thirty-one billion, one hundred million, four hundred fourteen thousand, twenty-two".

Divisors: 1 2 3 6 9 18 23 27 31 46 54 62 69 93 138 186 207 279 414 558 621 653 713 837 1237 1242 1306 1426 1674 1959 2139 2474 3711 3918 4278 5877 6417 7422 11133 11754 12834 15019 17631 19251 20243 22266 28451 30038 33399 35262 38347 38502 40486 45057 56902 60729 66798 76694 85353 90114 115041 121458 135171 170706 182187 230082 256059 270342 345123 364374 405513 465589 512118 546561 690246 768177 807761 811026 881981 931178 1035369 1093122 1396767 1536354 1615522 1763962 2070738 2423283 2645943 2793534 4190301 4846566 5291886 7269849 7937829 8380602 12570903 14539698 15875658 18578503 21809547 23813487 25040591 25141806 37157006 43619094 47626974 50081182 55735509 75121773 111471018 150243546 167206527 225365319 334413054 450730638 501619581 575933593 676095957 1003239162 1151867186 1352191914 1727800779 3455601558 5183402337 10366804674 15550207011 31100414022