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56894145 = 35721131227
BaseRepresentation
bin1101100100001…
…0001011000001
310222001112002120
43121002023001
5104031103040
65351234453
71260410100
oct331021301
9128045076
1056894145
112a12a460
1217078a29
13ba30399
1477b0037
154edc7d0
hex36422c1

56894145 has 96 divisors (see below), whose sum is σ = 119771136. Its totient is φ = 22780800.

The previous prime is 56894129. The next prime is 56894153. The reversal of 56894145 is 54149865.

It is not a de Polignac number, because 56894145 - 24 = 56894129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56894097 and 56894106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 250522 + ... + 250748.

It is an arithmetic number, because the mean of its divisors is an integer number (1247616).

Almost surely, 256894145 is an apocalyptic number.

56894145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56894145 is an abundant number, since it is smaller than the sum of its proper divisors (62876991).

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

56894145 is a wasteful number, since it uses less digits than its factorization.

56894145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 284 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 56894145 is about 7542.8207588408. The cubic root of 56894145 is about 384.6117297755.

The spelling of 56894145 in words is "fifty-six million, eight hundred ninety-four thousand, one hundred forty-five".

Divisors: 1 3 5 7 11 15 21 31 33 35 49 55 77 93 105 147 155 165 217 227 231 245 341 385 465 539 651 681 735 1023 1085 1135 1155 1519 1589 1617 1705 2387 2497 2695 3255 3405 4557 4767 5115 7037 7161 7491 7595 7945 8085 11123 11935 12485 16709 17479 21111 22785 23835 33369 35185 35805 37455 49259 50127 52437 55615 77407 83545 87395 105555 122353 147777 166845 232221 246295 250635 262185 344813 367059 387035 541849 611765 738885 1034439 1161105 1625547 1724065 1835295 2709245 3792943 5172195 8127735 11378829 18964715 56894145