Search a number
-
+
56938630 = 25719311381
BaseRepresentation
bin1101100100110…
…1000010000110
310222010210010011
43121031002012
5104034014010
65352220434
71260653560
oct331150206
9128123104
1056938630
112a15a921
121709a71a
13ba476c8
1477c2330
154eeaa8a
hex364d086

56938630 has 64 divisors (see below), whose sum is σ = 127365120. Its totient is φ = 17884800.

The previous prime is 56938621. The next prime is 56938631. The reversal of 56938630 is 3683965.

56938630 = T111 + T112 + ... + T699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56938631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40540 + ... + 41920.

It is an arithmetic number, because the mean of its divisors is an integer number (1990080).

Almost surely, 256938630 is an apocalyptic number.

56938630 is an abundant number, since it is smaller than the sum of its proper divisors (70426490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56938630 is a wasteful number, since it uses less digits than its factorization.

56938630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 56938630 is about 7545.7690131623. The cubic root of 56938630 is about 384.7119450994.

The spelling of 56938630 in words is "fifty-six million, nine hundred thirty-eight thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 19 31 35 38 62 70 95 133 155 190 217 266 310 434 589 665 1085 1178 1330 1381 2170 2762 2945 4123 5890 6905 8246 9667 13810 19334 20615 26239 41230 42811 48335 52478 85622 96670 131195 183673 214055 262390 299677 367346 428110 599354 813409 918365 1498385 1626818 1836730 2996770 4067045 5693863 8134090 11387726 28469315 56938630