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3131023324 = 22111337239619
BaseRepresentation
bin1011101010011111…
…1001111111011100
322002012120110112211
42322213321333130
522403020221244
61234404410204
7140406154612
oct27247717734
98065513484
103131023324
111367421190
127346a6964
133ab89aa30
14219b916b2
15134d25934
hexba9f9fdc

3131023324 has 96 divisors (see below), whose sum is σ = 6649574400. Its totient is φ = 1270805760.

The previous prime is 3131023321. The next prime is 3131023333. The reversal of 3131023324 is 4233201313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3131023295 and 3131023304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131023321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5057887 + ... + 5058505.

It is an arithmetic number, because the mean of its divisors is an integer number (69266400).

Almost surely, 23131023324 is an apocalyptic number.

It is an amenable number.

3131023324 is an abundant number, since it is smaller than the sum of its proper divisors (3518551076).

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

3131023324 is a wasteful number, since it uses less digits than its factorization.

3131023324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3131023324 is about 55955.5477499774. The cubic root of 3131023324 is about 1462.9475892465.

Adding to 3131023324 its reverse (4233201313), we get a palindrome (7364224637).

The spelling of 3131023324 in words is "three billion, one hundred thirty-one million, twenty-three thousand, three hundred twenty-four".

Divisors: 1 2 4 11 13 22 26 37 44 52 74 143 148 239 286 407 478 481 572 619 814 956 962 1238 1628 1924 2476 2629 3107 5258 5291 6214 6809 8047 8843 10516 10582 12428 13618 16094 17686 21164 22903 27236 32188 34177 35372 45806 68354 88517 91612 97273 114959 136708 147941 177034 194546 229918 251933 295882 297739 354068 389092 459836 503866 591764 595478 1007732 1190956 1264549 1627351 1923233 2529098 3254702 3275129 3846466 5058196 5473817 6509404 6550258 7692932 10947634 13100516 21155563 21895268 42311126 60211987 71159621 84622252 120423974 142319242 240847948 284638484 782755831 1565511662 3131023324