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31202203214 = 2713171440677
BaseRepresentation
bin11101000011110010…
…111101011001001110
32222112112110011011002
4131003302331121032
51002400231000324
622200055300302
72153135231330
oct350362753116
988475404132
1031202203214
1112261915106
12606967a692
132c3347b350
14171dd8d450
15c2944c3ae
hex743cbd64e

31202203214 has 16 divisors (see below), whose sum is σ = 57604067808. Its totient is φ = 12343728672.

The previous prime is 31202203181. The next prime is 31202203229. The reversal of 31202203214 is 41230220213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85720157 + ... + 85720520.

It is an arithmetic number, because the mean of its divisors is an integer number (3600254238).

Almost surely, 231202203214 is an apocalyptic number.

31202203214 is a deficient number, since it is larger than the sum of its proper divisors (26401864594).

31202203214 is a wasteful number, since it uses less digits than its factorization.

31202203214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171440699.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31202203214 its reverse (41230220213), we get a palindrome (72432423427).

The spelling of 31202203214 in words is "thirty-one billion, two hundred two million, two hundred three thousand, two hundred fourteen".

Divisors: 1 2 7 13 14 26 91 182 171440677 342881354 1200084739 2228728801 2400169478 4457457602 15601101607 31202203214