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31347600445 = 57895645727
BaseRepresentation
bin11101001100011101…
…100110110000111101
32222220200001002122201
4131030131212300331
51003144441203240
622222331511501
72156552131060
oct351435466075
988820032581
1031347600445
11123269a3207
1260aa2b8591
132c57628205
1417353da8d7
15c370bcd9a
hex74c766c3d

31347600445 has 8 divisors (see below), whose sum is σ = 42990994944. Its totient is φ = 21495497424.

The previous prime is 31347600407. The next prime is 31347600467. The reversal of 31347600445 is 54400674313.

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

It is a cyclic number.

It is not a de Polignac number, because 31347600445 - 223 = 31339211837 is a prime.

It is a Duffinian number.

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, 447822829 + ... + 447822898.

It is an arithmetic number, because the mean of its divisors is an integer number (5373874368).

Almost surely, 231347600445 is an apocalyptic number.

31347600445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31347600445 is a deficient number, since it is larger than the sum of its proper divisors (11643394499).

31347600445 is an equidigital number, since it uses as much as digits as its factorization.

31347600445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895645739.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 31347600445 in words is "thirty-one billion, three hundred forty-seven million, six hundred thousand, four hundred forty-five".

Divisors: 1 5 7 35 895645727 4478228635 6269520089 31347600445