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74385068444 = 2223977808649
BaseRepresentation
bin100010101000110110…
…0100001000110011100
321010000000121222220222
41011101230201012130
52204320034142234
654101054100512
75242221435521
oct1052154410634
9233000558828
1074385068444
1129601482985
12124bb4aa738
137025a801cb
143859165148
151e0559a42e
hex1151b2119c

74385068444 has 12 divisors (see below), whose sum is σ = 130718532000. Its totient is φ = 37036916448.

The previous prime is 74385068423. The next prime is 74385068473. The reversal of 74385068444 is 44486058347.

It is a super-2 number, since 2×743850684442 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38903369 + ... + 38905280.

It is an arithmetic number, because the mean of its divisors is an integer number (10893211000).

Almost surely, 274385068444 is an apocalyptic number.

It is an amenable number.

74385068444 is a deficient number, since it is larger than the sum of its proper divisors (56333463556).

74385068444 is a wasteful number, since it uses less digits than its factorization.

74385068444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77808892 (or 77808890 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 53.

The spelling of 74385068444 in words is "seventy-four billion, three hundred eighty-five million, sixty-eight thousand, four hundred forty-four".

Divisors: 1 2 4 239 478 956 77808649 155617298 311234596 18596267111 37192534222 74385068444