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670498478 = 213103125013
BaseRepresentation
bin100111111101101…
…111111010101110
31201201122211222222
4213331233322232
52333121422403
6150311035342
722421100026
oct4775577256
91651584888
10670498478
1131452a481
1216866bb52
13a8bb0280
1465098a86
153dce6338
hex27f6feae

670498478 has 16 divisors (see below), whose sum is σ = 1084206816. Its totient is φ = 309148320.

The previous prime is 670498469. The next prime is 670498501. The reversal of 670498478 is 874894076.

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, 14300 + ... + 39312.

It is an arithmetic number, because the mean of its divisors is an integer number (67762926).

Almost surely, 2670498478 is an apocalyptic number.

670498478 is a deficient number, since it is larger than the sum of its proper divisors (413708338).

670498478 is a wasteful number, since it uses less digits than its factorization.

670498478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26059.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 670498478 is about 25893.9853634005. The cubic root of 670498478 is about 875.2509660523.

The spelling of 670498478 in words is "six hundred seventy million, four hundred ninety-eight thousand, four hundred seventy-eight".

Divisors: 1 2 13 26 1031 2062 13403 25013 26806 50026 325169 650338 25788403 51576806 335249239 670498478