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31212320114 = 289698325111
BaseRepresentation
bin11101000100011001…
…100011010101110010
32222120020111010221002
4131010121203111302
51002410323220424
622201100202002
72153320225553
oct350431432562
988506433832
1031212320114
11122675a5088
126070b39302
132c355b1191
14172146432a
15c2a299cae
hex744663572

31212320114 has 16 divisors (see below), whose sum is σ = 47353196160. Its totient is φ = 15427985760.

The previous prime is 31212320101. The next prime is 31212320137. The reversal of 31212320114 is 41102321213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230419 + ... + 1255529.

It is an arithmetic number, because the mean of its divisors is an integer number (2959574760).

Almost surely, 231212320114 is an apocalyptic number.

31212320114 is a deficient number, since it is larger than the sum of its proper divisors (16140876046).

31212320114 is a wasteful number, since it uses less digits than its factorization.

31212320114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32185.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31212320114 its reverse (41102321213), we get a palindrome (72314641327).

The spelling of 31212320114 in words is "thirty-one billion, two hundred twelve million, three hundred twenty thousand, one hundred fourteen".

Divisors: 1 2 89 178 6983 13966 25111 50222 621487 1242974 2234879 4469758 175350113 350700226 15606160057 31212320114