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72493069 = 1129227251
BaseRepresentation
bin1000101001000…
…10100000001101
312001102000210111
410110202200031
5122024234234
611105440021
71540116025
oct424424015
9161360714
1072493069
1137a14130
1220340011
131203250c
1498b0a85
15656e664
hex452280d

72493069 has 8 divisors (see below), whose sum is σ = 81810720. Its totient is φ = 63630000.

The previous prime is 72493061. The next prime is 72493093. The reversal of 72493069 is 96039427.

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 72493069 - 23 = 72493061 is a prime.

It is a super-2 number, since 2×724930692 = 10510490106077522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72493061) 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, 113307 + ... + 113944.

It is an arithmetic number, because the mean of its divisors is an integer number (10226340).

Almost surely, 272493069 is an apocalyptic number.

It is an amenable number.

72493069 is a deficient number, since it is larger than the sum of its proper divisors (9317651).

72493069 is a wasteful number, since it uses less digits than its factorization.

72493069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227291.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 72493069 is about 8514.2861709012. The cubic root of 72493069 is about 416.9642576622.

The spelling of 72493069 in words is "seventy-two million, four hundred ninety-three thousand, sixty-nine".

Divisors: 1 11 29 319 227251 2499761 6590279 72493069