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31070671480 = 2352334797327
BaseRepresentation
bin11100111011111101…
…001101001001111000
32222012100221122112101
4130323331031021320
51002113042441410
622135040153144
72146650231022
oct347375151170
988170848471
1031070671480
11121a46473a2
1260316087b4
132c12147614
14170a711012
15c1cb19d3a
hex73bf4d278

31070671480 has 64 divisors (see below), whose sum is σ = 73159511040. Its totient is φ = 11853528192.

The previous prime is 31070671459. The next prime is 31070671483. The reversal of 31070671480 is 8417607013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31070671483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270577 + ... + 367903.

It is an arithmetic number, because the mean of its divisors is an integer number (1143117360).

Almost surely, 231070671480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31070671480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36579755520).

31070671480 is an abundant number, since it is smaller than the sum of its proper divisors (42088839560).

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

31070671480 is a wasteful number, since it uses less digits than its factorization.

31070671480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97708 (or 97704 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 31070671480 in words is "thirty-one billion, seventy million, six hundred seventy-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 347 460 694 920 1388 1735 2776 3470 6940 7981 13880 15962 31924 39905 63848 79810 97327 159620 194654 319240 389308 486635 778616 973270 1946540 2238521 3893080 4477042 8954084 11192605 17908168 22385210 33772469 44770420 67544938 89540840 135089876 168862345 270179752 337724690 675449380 776766787 1350898760 1553533574 3107067148 3883833935 6214134296 7767667870 15535335740 31070671480