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31501514045 = 529217251821
BaseRepresentation
bin11101010101101000…
…101111010100111101
310000022101122201102102
4131111220233110331
51004003341422140
622245510434445
72163431310551
oct352550572475
9100271581372
1031501514045
11123a5868831
126131962a25
132c80497551
14174ba23861
15c45871e15
hex755a2f53d

31501514045 has 8 divisors (see below), whose sum is σ = 39105327960. Its totient is φ = 24332203840.

The previous prime is 31501514039. The next prime is 31501514089. The reversal of 31501514045 is 54041510513.

It can be written as a sum of positive squares in 4 ways, for example, as 2966871961 + 28534642084 = 54469^2 + 168922^2 .

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

It is not a de Polignac number, because 31501514045 - 234 = 14321644861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 31501513999 and 31501514017.

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, 108625766 + ... + 108626055.

It is an arithmetic number, because the mean of its divisors is an integer number (4888165995).

Almost surely, 231501514045 is an apocalyptic number.

It is an amenable number.

31501514045 is a deficient number, since it is larger than the sum of its proper divisors (7603813915).

31501514045 is a wasteful number, since it uses less digits than its factorization.

31501514045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217251855.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 31501514045 in words is "thirty-one billion, five hundred one million, five hundred fourteen thousand, forty-five".

Divisors: 1 5 29 145 217251821 1086259105 6300302809 31501514045