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57078004 = 2214269501
BaseRepresentation
bin1101100110111…
…1000011110100
310222101212022011
43121233003310
5104102444004
65355214004
71262104114
oct331570364
9128355264
1057078004
112a245605
1217147304
13ba95c89
14781b044
155027004
hex366f0f4

57078004 has 6 divisors (see below), whose sum is σ = 99886514. Its totient is φ = 28539000.

The previous prime is 57077981. The next prime is 57078017. The reversal of 57078004 is 40087075.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 3055504 = 7350^2 + 1748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7134747 + ... + 7134754.

Almost surely, 257078004 is an apocalyptic number.

It is an amenable number.

57078004 is a deficient number, since it is larger than the sum of its proper divisors (42808510).

57078004 is a wasteful number, since it uses less digits than its factorization.

57078004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269505 (or 14269503 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 57078004 is about 7554.9986101918. The cubic root of 57078004 is about 385.0255877748.

The spelling of 57078004 in words is "fifty-seven million, seventy-eight thousand, four".

Divisors: 1 2 4 14269501 28539002 57078004