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31014144200 = 23521311928517
BaseRepresentation
bin11100111000100101…
…100100100011001000
32222001102120202200102
4130320211210203020
51002004110103300
622125300424532
72145362606324
oct347045444310
988042522612
1031014144200
1112175748636
1260166a8148
132c03515220
141702dd8984
15c17ba10d5
hex7389648c8

31014144200 has 48 divisors (see below), whose sum is σ = 77654652180. Its totient is φ = 11451375360.

The previous prime is 31014144193. The next prime is 31014144211. The reversal of 31014144200 is 244141013.

It can be written as a sum of positive squares in 6 ways, for example, as 13911258916 + 17102885284 = 117946^2 + 130778^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5961659 + ... + 5966858.

Almost surely, 231014144200 is an apocalyptic number.

It is an amenable number.

31014144200 is an abundant number, since it is smaller than the sum of its proper divisors (46640507980).

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

31014144200 is a wasteful number, since it uses less digits than its factorization.

31014144200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928546 (or 11928537 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31014144200 its reverse (244141013), we get a palindrome (31258285213).

The spelling of 31014144200 in words is "thirty-one billion, fourteen million, one hundred forty-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 130 200 260 325 520 650 1300 2600 11928517 23857034 47714068 59642585 95428136 119285170 155070721 238570340 298212925 310141442 477140680 596425850 620282884 775353605 1192851700 1240565768 1550707210 2385703400 3101414420 3876768025 6202828840 7753536050 15507072100 31014144200