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73140704 = 2571325117
BaseRepresentation
bin1000101110000…
…00100111100000
312002121221011222
410113000213200
5122211000304
611131354212
71545454130
oct427004740
9162557158
1073140704
113831676a
12205b2968
13121cb230
1499dcac0
15664b4be
hex45c09e0

73140704 has 48 divisors (see below), whose sum is σ = 177232608. Its totient is φ = 28933632.

The previous prime is 73140703. The next prime is 73140731. The reversal of 73140704 is 40704137.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73140703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9647 + ... + 15470.

It is an arithmetic number, because the mean of its divisors is an integer number (3692346).

Almost surely, 273140704 is an apocalyptic number.

It is an amenable number.

73140704 is an abundant number, since it is smaller than the sum of its proper divisors (104091904).

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

73140704 is a wasteful number, since it uses less digits than its factorization.

73140704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25147 (or 25139 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 73140704 is about 8552.2338602262. The cubic root of 73140704 is about 418.2022631695.

The spelling of 73140704 in words is "seventy-three million, one hundred forty thousand, seven hundred four".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 364 416 728 1456 2912 25117 50234 100468 175819 200936 326521 351638 401872 653042 703276 803744 1306084 1406552 2285647 2612168 2813104 4571294 5224336 5626208 9142588 10448672 18285176 36570352 73140704