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72199373 = 1912729921
BaseRepresentation
bin1000100110110…
…10110011001101
312000212002220212
410103122303031
5121440334443
611055252205
71534453541
oct423326315
9160762825
1072199373
1137833504
122021a065
1311c5b92c
149835a21
156512618
hex44daccd

72199373 has 8 divisors (see below), whose sum is σ = 76600320. Its totient is φ = 67858560.

The previous prime is 72199367. The next prime is 72199399. The reversal of 72199373 is 37399127.

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 72199373 - 214 = 72182989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72199373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72199313) 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, 12548 + ... + 17373.

It is an arithmetic number, because the mean of its divisors is an integer number (9575040).

Almost surely, 272199373 is an apocalyptic number.

It is an amenable number.

72199373 is a deficient number, since it is larger than the sum of its proper divisors (4400947).

72199373 is a wasteful number, since it uses less digits than its factorization.

72199373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30067.

The product of its digits is 71442, while the sum is 41.

The square root of 72199373 is about 8497.0214192975. The cubic root of 72199373 is about 416.4004038239.

The spelling of 72199373 in words is "seventy-two million, one hundred ninety-nine thousand, three hundred seventy-three".

Divisors: 1 19 127 2413 29921 568499 3799967 72199373