Search a number
-
+
56923870 = 256784961
BaseRepresentation
bin1101100100100…
…1011011011110
310222010000212111
43121021123132
5104033030440
65352024234
71260562543
oct331113336
9128100774
1056923870
112a14a823
121709207a
13ba40a83
1477babca
154ee64ea
hex36496de

56923870 has 16 divisors (see below), whose sum is σ = 103993488. Its totient is φ = 22429440.

The previous prime is 56923817. The next prime is 56923879. The reversal of 56923870 is 7832965.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56923879) 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, 41811 + ... + 43150.

It is an arithmetic number, because the mean of its divisors is an integer number (6499593).

Almost surely, 256923870 is an apocalyptic number.

56923870 is a deficient number, since it is larger than the sum of its proper divisors (47069618).

56923870 is a wasteful number, since it uses less digits than its factorization.

56923870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85035.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 56923870 is about 7544.7909182429. The cubic root of 56923870 is about 384.6786997201.

The spelling of 56923870 in words is "fifty-six million, nine hundred twenty-three thousand, eight hundred seventy".

Divisors: 1 2 5 10 67 134 335 670 84961 169922 424805 849610 5692387 11384774 28461935 56923870