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68952939 = 3112412113
BaseRepresentation
bin1000001110000…
…10001101101011
311210202011122120
410013002031223
5120122443224
610501522323
71465042656
oct407021553
9153664576
1068952939
1135a16400
121b1133a3
1311393073
14922c89d
1560c0779
hex41c236b

68952939 has 36 divisors (see below), whose sum is σ = 104496504. Its totient is φ = 40409600.

The previous prime is 68952937. The next prime is 68952967. The reversal of 68952939 is 93925986.

It is not a de Polignac number, because 68952939 - 21 = 68952937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68952891 and 68952900.

It is not an unprimeable number, because it can be changed into a prime (68952937) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 610147 + ... + 610259.

Almost surely, 268952939 is an apocalyptic number.

68952939 is a deficient number, since it is larger than the sum of its proper divisors (35543565).

68952939 is a wasteful number, since it uses less digits than its factorization.

68952939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 168 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The square root of 68952939 is about 8303.7906404244. The cubic root of 68952939 is about 410.0633235527.

It can be divided in two parts, 689 and 52939, that added together give a triangular number (53628 = T327).

The spelling of 68952939 in words is "sixty-eight million, nine hundred fifty-two thousand, nine hundred thirty-nine".

Divisors: 1 3 11 33 41 113 121 123 339 363 451 1243 1353 1681 3729 4633 4961 5043 13673 13899 14883 18491 41019 50963 55473 152889 189953 203401 560593 569859 610203 1681779 2089483 6268449 22984313 68952939