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31542302044 = 221117432933347
BaseRepresentation
bin11101011000000100…
…010101010101011100
310000102020101222001001
4131120010111111130
51004044312131134
622253525000044
72164435100161
oct353004252534
9100366358031
1031542302044
1112416897420
126143553024
132c88a78966
141753200068
15c4922c414
hex75811555c

31542302044 has 96 divisors (see below), whose sum is σ = 65484308736. Its totient is φ = 13131310080.

The previous prime is 31542302039. The next prime is 31542302063. The reversal of 31542302044 is 44020324513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9422379 + ... + 9425725.

It is an arithmetic number, because the mean of its divisors is an integer number (682128216).

Almost surely, 231542302044 is an apocalyptic number.

31542302044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31542302044 is an abundant number, since it is smaller than the sum of its proper divisors (33942006692).

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

31542302044 is a wasteful number, since it uses less digits than its factorization.

31542302044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 31542302044 its reverse (44020324513), we get a palindrome (75562626557).

The spelling of 31542302044 in words is "thirty-one billion, five hundred forty-two million, three hundred two thousand, forty-four".

Divisors: 1 2 4 11 17 22 34 43 44 68 86 172 187 293 374 473 586 731 748 946 1172 1462 1892 2924 3223 3347 4981 6446 6694 8041 9962 12599 12892 13388 16082 19924 25198 32164 36817 50396 54791 56899 73634 109582 113798 138589 143921 147268 214183 219164 227596 277178 287842 428366 554356 575684 625889 856732 980671 1251778 1583131 1961342 2356013 2446657 2503556 3166262 3922684 4712026 4893314 6332524 9424052 9786628 10787381 16671407 21574762 26913227 33342814 42168853 43149524 53826454 66685628 84337706 107652908 168675412 183385477 366770954 463857383 716870501 733541908 927714766 1433741002 1855429532 2867482004 7885575511 15771151022 31542302044