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72707053 = 197153897
BaseRepresentation
bin1000101010101…
…10101111101101
312001210220022211
410111112233231
5122103111203
611114210421
71541666626
oct425265755
9161726284
1072707053
113804a981
1220423a11
13120a8a33
149928a4d
1565b2c6d
hex4556bed

72707053 has 8 divisors (see below), whose sum is σ = 77613120. Its totient is φ = 67908960.

The previous prime is 72707039. The next prime is 72707069. The reversal of 72707053 is 35070727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72707053 - 25 = 72707021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72707093) 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, 25600 + ... + 28297.

It is an arithmetic number, because the mean of its divisors is an integer number (9701640).

Almost surely, 272707053 is an apocalyptic number.

It is an amenable number.

72707053 is a deficient number, since it is larger than the sum of its proper divisors (4906067).

72707053 is a wasteful number, since it uses less digits than its factorization.

72707053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53987.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 72707053 is about 8526.8430852221. The cubic root of 72707053 is about 417.3741176893.

The spelling of 72707053 in words is "seventy-two million, seven hundred seven thousand, fifty-three".

Divisors: 1 19 71 1349 53897 1024043 3826687 72707053