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26974800040 = 2353121753871
BaseRepresentation
bin11001000111110100…
…101100100010101000
32120121220211211012011
4121013310230202220
5420221022100130
620220403325304
71643314005616
oct310764544250
976556754164
1026974800040
1110492631581
125289980834
13270b6c9656
14143c7626b6
15a7d25852a
hex647d2c8a8

26974800040 has 32 divisors (see below), whose sum is σ = 62651151360. Its totient is φ = 10441857600.

The previous prime is 26974800037. The next prime is 26974800077. The reversal of 26974800040 is 4000847962.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26974799966 and 26974800002.

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, 10875696 + ... + 10878175.

It is an arithmetic number, because the mean of its divisors is an integer number (1957848480).

Almost surely, 226974800040 is an apocalyptic number.

26974800040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26974800040 is an abundant number, since it is smaller than the sum of its proper divisors (35676351320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26974800040 is a wasteful number, since it uses less digits than its factorization.

26974800040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753913 (or 21753909 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 26974800040 in words is "twenty-six billion, nine hundred seventy-four million, eight hundred thousand, forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 21753871 43507742 87015484 108769355 174030968 217538710 435077420 674370001 870154840 1348740002 2697480004 3371850005 5394960008 6743700010 13487400020 26974800040