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1631076457 = 13925745659
BaseRepresentation
bin110000100111000…
…0100000001101001
311012200011021021011
41201032010001221
511320023421312
6425503343521
755263630643
oct14116040151
94180137234
101631076457
1176777797a
123962b1ba1
131ccbc69ca
141168a3893
15982dbda7
hex61384069

1631076457 has 8 divisors (see below), whose sum is σ = 1649239200. Its totient is φ = 1613005824.

The previous prime is 1631076427. The next prime is 1631076497. The reversal of 1631076457 is 7546701361.

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 1631076457 - 219 = 1630552169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1631076427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12894 + ... + 58552.

It is an arithmetic number, because the mean of its divisors is an integer number (206154900).

Almost surely, 21631076457 is an apocalyptic number.

It is an amenable number.

1631076457 is a deficient number, since it is larger than the sum of its proper divisors (18162743).

1631076457 is a wasteful number, since it uses less digits than its factorization.

1631076457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46055.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1631076457 is about 40386.5875879604. The cubic root of 1631076457 is about 1177.1309348327.

The spelling of 1631076457 in words is "one billion, six hundred thirty-one million, seventy-six thousand, four hundred fifty-seven".

Divisors: 1 139 257 35723 45659 6346601 11734363 1631076457