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707373920431 = 1378151329651
BaseRepresentation
bin10100100101100101100…
…01010111000010101111
32111121212002211100221001
422102302301113002233
543042200210423211
61300544010021131
7102051246054553
oct12226261270257
92447762740831
10707373920431
11252aa5156212
12b51161177a7
1351922082a79
1426346797863
1513601632ac1
hexa4b2c570af

707373920431 has 4 divisors (see below), whose sum is σ = 707425263864. Its totient is φ = 707322577000.

The previous prime is 707373920423. The next prime is 707373920447. The reversal of 707373920431 is 134029373707.

707373920431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134029373707 = 367136510317.

It is a cyclic number.

It is not a de Polignac number, because 707373920431 - 23 = 707373920423 is a prime.

It is a super-2 number, since 2×7073739204312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707373920401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25651045 + ... + 25678606.

It is an arithmetic number, because the mean of its divisors is an integer number (176856315966).

Almost surely, 2707373920431 is an apocalyptic number.

707373920431 is a deficient number, since it is larger than the sum of its proper divisors (51343433).

707373920431 is a wasteful number, since it uses less digits than its factorization.

707373920431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51343432.

The product of its (nonzero) digits is 666792, while the sum is 46.

The spelling of 707373920431 in words is "seven hundred seven billion, three hundred seventy-three million, nine hundred twenty thousand, four hundred thirty-one".

Divisors: 1 13781 51329651 707373920431