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3078045457 = 15120384407
BaseRepresentation
bin1011011101110111…
…0011111100010001
321221111212220120121
42313131303330101
522300434423312
61225233110241
7136163645314
oct26735637421
97844786517
103078045457
11133a527123
1271a9b8381
133a090c096
14212b2097b
1513035d707
hexb7773f11

3078045457 has 4 divisors (see below), whose sum is σ = 3098430016. Its totient is φ = 3057660900.

The previous prime is 3078045431. The next prime is 3078045473. The reversal of 3078045457 is 7545408703.

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.

It is a cyclic number.

It is not a de Polignac number, because 3078045457 - 231 = 930561809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3078045757) 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, 10192053 + ... + 10192354.

It is an arithmetic number, because the mean of its divisors is an integer number (774607504).

Almost surely, 23078045457 is an apocalyptic number.

It is an amenable number.

3078045457 is a deficient number, since it is larger than the sum of its proper divisors (20384559).

3078045457 is a wasteful number, since it uses less digits than its factorization.

3078045457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20384558.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 3078045457 is about 55480.1356973827. The cubic root of 3078045457 is about 1454.6494366084.

The spelling of 3078045457 in words is "three billion, seventy-eight million, forty-five thousand, four hundred fifty-seven".

Divisors: 1 151 20384407 3078045457