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64234898425 = 5214471775671
BaseRepresentation
bin111011110100101100…
…101100001111111001
320010210122021221021001
4323310230230033321
52023023113222200
645301544445001
74432541425225
oct736454541771
9203718257231
1064234898425
1125272a1aa15
1210548179761
136098c34649
1431750b1785
151a0e42776a
hexef4b2c3f9

64234898425 has 12 divisors (see below), whose sum is σ = 79706364736. Its totient is φ = 51352376400.

The previous prime is 64234898389. The next prime is 64234898447. The reversal of 64234898425 is 52489843246.

It is not a de Polignac number, because 64234898425 - 211 = 64234896377 is a prime.

It is a super-2 number, since 2×642348984252 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 851661 + ... + 924010.

Almost surely, 264234898425 is an apocalyptic number.

It is an amenable number.

64234898425 is a deficient number, since it is larger than the sum of its proper divisors (15471466311).

64234898425 is a wasteful number, since it uses less digits than its factorization.

64234898425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777128 (or 1777123 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 55.

The spelling of 64234898425 in words is "sixty-four billion, two hundred thirty-four million, eight hundred ninety-eight thousand, four hundred twenty-five".

Divisors: 1 5 25 1447 7235 36175 1775671 8878355 44391775 2569395937 12846979685 64234898425