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31330803830 = 253133080383
BaseRepresentation
bin11101001011011101…
…100010000001110110
32222212111102202000212
4131023131202001312
51003131141210310
622220531505422
72156256303254
oct351335420166
988774382025
1031330803830
1112318470707
1260a4758272
132c53cc6ba1
1417330a75d4
15c358a1205
hex74b762076

31330803830 has 8 divisors (see below), whose sum is σ = 56395446912. Its totient is φ = 12532321528.

The previous prime is 31330803811. The next prime is 31330803839. The reversal of 31330803830 is 3830803313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330803839) 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, 1566540182 + ... + 1566540201.

It is an arithmetic number, because the mean of its divisors is an integer number (7049430864).

Almost surely, 231330803830 is an apocalyptic number.

31330803830 is a deficient number, since it is larger than the sum of its proper divisors (25064643082).

31330803830 is a wasteful number, since it uses less digits than its factorization.

31330803830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133080390.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 31330803830 in words is "thirty-one billion, three hundred thirty million, eight hundred three thousand, eight hundred thirty".

Divisors: 1 2 5 10 3133080383 6266160766 15665401915 31330803830