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74123131407070 = 2553215427171049
BaseRepresentation
bin10000110110101000100010…
…111010101100101011011110
3100201110002202110210001011211
4100312220202322230223132
534203413133120011240
6421351410234535034
721420135203235214
oct2066504272545336
9321402673701154
1074123131407070
1121688497325339
12839168689747a
133248a20690095
141443815d5ccb4
158881a5805bea
hex436a22eacade

74123131407070 has 48 divisors (see below), whose sum is σ = 135996133719600. Its totient is φ = 29087777002752.

The previous prime is 74123131407067. The next prime is 74123131407131. The reversal of 74123131407070 is 7070413132147.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433258906 + ... + 433429954.

It is an arithmetic number, because the mean of its divisors is an integer number (2833252785825).

Almost surely, 274123131407070 is an apocalyptic number.

74123131407070 is a deficient number, since it is larger than the sum of its proper divisors (61873002312530).

74123131407070 is a wasteful number, since it uses less digits than its factorization.

74123131407070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186589 (or 186536 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 74123131407070 in words is "seventy-four trillion, one hundred twenty-three billion, one hundred thirty-one million, four hundred seven thousand, seventy".

Divisors: 1 2 5 10 53 106 265 530 2809 5618 14045 15427 28090 30854 77135 154270 171049 342098 817631 855245 1635262 1710490 4088155 8176310 9065597 18131194 43334443 45327985 86668886 90655970 216672215 433344430 480476641 960953282 2402383205 2638772923 4804766410 5277545846 13193864615 26387729230 139854964919 279709929838 699274824595 1398549649190 7412313140707 14824626281414 37061565703535 74123131407070