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20072056870 = 252007205687
BaseRepresentation
bin10010101100011000…
…110100100000100110
31220210212010010200201
4102230120310200212
5312101421304440
613115421501114
71310255445145
oct225430644046
956725103621
1020072056870
118570175458
123a8211179a
131b7b5b6738
14d85ac175c
157c725119a
hex4ac634826

20072056870 has 8 divisors (see below), whose sum is σ = 36129702384. Its totient is φ = 8028822744.

The previous prime is 20072056853. The next prime is 20072056871. The reversal of 20072056870 is 7865027002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20072056871) 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, 1003602834 + ... + 1003602853.

It is an arithmetic number, because the mean of its divisors is an integer number (4516212798).

Almost surely, 220072056870 is an apocalyptic number.

20072056870 is a deficient number, since it is larger than the sum of its proper divisors (16057645514).

20072056870 is a wasteful number, since it uses less digits than its factorization.

20072056870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007205694.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 20072056870 in words is "twenty billion, seventy-two million, fifty-six thousand, eight hundred seventy".

Divisors: 1 2 5 10 2007205687 4014411374 10036028435 20072056870