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612470491 = 1953608213
BaseRepresentation
bin100100100000011…
…000111011011011
31120200110201120021
4210200120323123
52223243023431
6140435211311
721114625153
oct4440307333
91520421507
10612470491
112947a6166
12151146b37
1399b73a99
145b4b1763
1538b82b11
hex24818edb

612470491 has 8 divisors (see below), whose sum is σ = 656871120. Its totient is φ = 569286432.

The previous prime is 612470483. The next prime is 612470497. The reversal of 612470491 is 194074216.

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

It is a cyclic number.

It is not a de Polignac number, because 612470491 - 23 = 612470483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612470497) 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, 303100 + ... + 305113.

It is an arithmetic number, because the mean of its divisors is an integer number (82108890).

Almost surely, 2612470491 is an apocalyptic number.

612470491 is a deficient number, since it is larger than the sum of its proper divisors (44400629).

612470491 is a wasteful number, since it uses less digits than its factorization.

612470491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608285.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 612470491 is about 24748.1411625197. The cubic root of 612470491 is about 849.2359875306.

The spelling of 612470491 in words is "six hundred twelve million, four hundred seventy thousand, four hundred ninety-one".

Divisors: 1 19 53 1007 608213 11556047 32235289 612470491