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56458731497 = 750316034857
BaseRepresentation
bin110100100101001100…
…111101111111101001
312101201201001201121112
4310211030331333221
51411111413401442
641534202320105
74036046204510
oct644514757751
9171651051545
1056458731497
1121a42533683
12ab37ab9035
135429ba183c
142a38431677
1517068e3082
hexd2533dfe9

56458731497 has 8 divisors (see below), whose sum is σ = 64652547456. Its totient is φ = 48296986272.

The previous prime is 56458731487. The next prime is 56458731499. The reversal of 56458731497 is 79413785465.

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 56458731497 - 224 = 56441954281 is a prime.

It is a super-2 number, since 2×564587314972 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56458731499) 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, 8013908 + ... + 8020949.

It is an arithmetic number, because the mean of its divisors is an integer number (8081568432).

Almost surely, 256458731497 is an apocalyptic number.

It is an amenable number.

56458731497 is a deficient number, since it is larger than the sum of its proper divisors (8193815959).

56458731497 is a wasteful number, since it uses less digits than its factorization.

56458731497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16035367.

The product of its digits is 25401600, while the sum is 59.

The spelling of 56458731497 in words is "fifty-six billion, four hundred fifty-eight million, seven hundred thirty-one thousand, four hundred ninety-seven".

Divisors: 1 7 503 3521 16034857 112243999 8065533071 56458731497