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72853097 = 139524123
BaseRepresentation
bin1000101011110…
…10011001101001
312002002022122212
410111322121221
5122122244342
611121254505
71543145462
oct425723151
9162068585
1072853097
113813a679
1220494435
131212a355
149965d69
1565e1182
hex457a669

72853097 has 4 divisors (see below), whose sum is σ = 73377360. Its totient is φ = 72328836.

The previous prime is 72853091. The next prime is 72853117. The reversal of 72853097 is 79035827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72853097 - 212 = 72849001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72853091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261923 + ... + 262200.

It is an arithmetic number, because the mean of its divisors is an integer number (18344340).

Almost surely, 272853097 is an apocalyptic number.

It is an amenable number.

72853097 is a deficient number, since it is larger than the sum of its proper divisors (524263).

72853097 is a wasteful number, since it uses less digits than its factorization.

72853097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524262.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 72853097 is about 8535.4025681276. The cubic root of 72853097 is about 417.6533854995.

The spelling of 72853097 in words is "seventy-two million, eight hundred fifty-three thousand, ninety-seven".

Divisors: 1 139 524123 72853097