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45134927857 = 151298906807
BaseRepresentation
bin101010000010010000…
…000101011111110001
311022111112022220021201
4222002100011133301
51214414020142412
632422410051201
73155325361645
oct520220053761
9138445286251
1045134927857
1118161543378
1288b7719b01
134343b63906
142282552c25
1512926e1e57
hexa824057f1

45134927857 has 4 divisors (see below), whose sum is σ = 45433834816. Its totient is φ = 44836020900.

The previous prime is 45134927833. The next prime is 45134927939. The reversal of 45134927857 is 75872943154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75872943154 = 237936471577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45134927857 is a prime.

It is a super-2 number, since 2×451349278572 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45134927798 and 45134927807.

It is not an unprimeable number, because it can be changed into a prime (45134927807) 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, 149453253 + ... + 149453554.

It is an arithmetic number, because the mean of its divisors is an integer number (11358458704).

Almost surely, 245134927857 is an apocalyptic number.

It is an amenable number.

45134927857 is a deficient number, since it is larger than the sum of its proper divisors (298906959).

45134927857 is a wasteful number, since it uses less digits than its factorization.

45134927857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298906958.

The product of its digits is 8467200, while the sum is 55.

The spelling of 45134927857 in words is "forty-five billion, one hundred thirty-four million, nine hundred twenty-seven thousand, eight hundred fifty-seven".

Divisors: 1 151 298906807 45134927857