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564505797 = 3792381881
BaseRepresentation
bin100001101001011…
…010110011000101
31110100012212101010
4201221122303011
52124003141142
6132003152433
716663135332
oct4151326305
91410185333
10564505797
1126a715619
12139075719
138cc4bbcb
1454d87989
153485ae9c
hex21a5acc5

564505797 has 8 divisors (see below), whose sum is σ = 762202240. Its totient is φ = 371573280.

The previous prime is 564505769. The next prime is 564505807. The reversal of 564505797 is 797505465.

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

It is not a de Polignac number, because 564505797 - 28 = 564505541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564505717) 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, 1190704 + ... + 1191177.

It is an arithmetic number, because the mean of its divisors is an integer number (95275280).

Almost surely, 2564505797 is an apocalyptic number.

It is an amenable number.

564505797 is a deficient number, since it is larger than the sum of its proper divisors (197696443).

564505797 is a wasteful number, since it uses less digits than its factorization.

564505797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381963.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The square root of 564505797 is about 23759.3307355237. The cubic root of 564505797 is about 826.4618328311.

The spelling of 564505797 in words is "five hundred sixty-four million, five hundred five thousand, seven hundred ninety-seven".

Divisors: 1 3 79 237 2381881 7145643 188168599 564505797