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1957423470 = 23565247449
BaseRepresentation
bin111010010101011…
…1110100101101110
312001102020102012120
41310222332211232
513002100022340
6522122213410
766335552652
oct16452764556
95042212176
101957423470
11914a07252
12467654266
132526bab52
14147d74a62
15b6ca24d0
hex74abe96e

1957423470 has 16 divisors (see below), whose sum is σ = 4697816400. Its totient is φ = 521979584.

The previous prime is 1957423427. The next prime is 1957423513. The reversal of 1957423470 is 743247591.

It is an interprime number because it is at equal distance from previous prime (1957423427) and next prime (1957423513).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32623695 + ... + 32623754.

It is an arithmetic number, because the mean of its divisors is an integer number (293613525).

Almost surely, 21957423470 is an apocalyptic number.

1957423470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957423470 is an abundant number, since it is smaller than the sum of its proper divisors (2740392930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1957423470 is a wasteful number, since it uses less digits than its factorization.

1957423470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65247459.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 1957423470 is about 44242.7787328057. The cubic root of 1957423470 is about 1250.9163350333.

The spelling of 1957423470 in words is "one billion, nine hundred fifty-seven million, four hundred twenty-three thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 65247449 130494898 195742347 326237245 391484694 652474490 978711735 1957423470