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470745707257 = 7157428340043
BaseRepresentation
bin1101101100110101010…
…00010111001011111001
31200000002002002122220201
412312122220113023321
530203041400113012
61000131350122201
746003342330210
oct6663250271371
91600062078821
10470745707257
11171707752361
1277297950361
1335511409597
1418ad9c50077
15c3a2709857
hex6d9aa172f9

470745707257 has 8 divisors (see below), whose sum is σ = 541421815616. Its totient is φ = 400926279312.

The previous prime is 470745707251. The next prime is 470745707279. The reversal of 470745707257 is 752707547074.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-470745707257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470745707198 and 470745707207.

It is not an unprimeable number, because it can be changed into a prime (470745707251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214168923 + ... + 214171120.

It is an arithmetic number, because the mean of its divisors is an integer number (67677726952).

Almost surely, 2470745707257 is an apocalyptic number.

It is an amenable number.

470745707257 is a deficient number, since it is larger than the sum of its proper divisors (70676108359).

470745707257 is a wasteful number, since it uses less digits than its factorization.

470745707257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428340207.

The product of its (nonzero) digits is 13445600, while the sum is 55.

The spelling of 470745707257 in words is "four hundred seventy billion, seven hundred forty-five million, seven hundred seven thousand, two hundred fifty-seven".

Divisors: 1 7 157 1099 428340043 2998380301 67249386751 470745707257