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31797141203 = 40737806811
BaseRepresentation
bin11101100111010000…
…011101111011010011
310001001222221010122102
4131213100131323103
51010110032004303
622335111031015
72203651145402
oct354720357323
9101058833572
1031797141203
11125377258a3
1261b496b46b
132cc97c3b69
141778db9639
15c617ba288
hex76741ded3

31797141203 has 4 divisors (see below), whose sum is σ = 31804952088. Its totient is φ = 31789330320.

The previous prime is 31797141197. The next prime is 31797141209. The reversal of 31797141203 is 30214179713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30214179713 = 171777304689.

It is an interprime number because it is at equal distance from previous prime (31797141197) and next prime (31797141209).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31797141203 is a prime.

It is a super-2 number, since 2×317971412032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31797141209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3899333 + ... + 3907478.

It is an arithmetic number, because the mean of its divisors is an integer number (7951238022).

Almost surely, 231797141203 is an apocalyptic number.

31797141203 is a deficient number, since it is larger than the sum of its proper divisors (7810885).

31797141203 is an equidigital number, since it uses as much as digits as its factorization.

31797141203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810884.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 31797141203 in words is "thirty-one billion, seven hundred ninety-seven million, one hundred forty-one thousand, two hundred three".

Divisors: 1 4073 7806811 31797141203