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72214053 = 3591632503
BaseRepresentation
bin1000100110111…
…10011000100101
312000212212001120
410103132120211
5121441322203
611055444153
71534544412
oct423363045
9160785046
1072214053
113784353a
1220226659
1311c65512
14983b109
156516b53
hex44de625

72214053 has 16 divisors (see below), whose sum is σ = 98557440. Its totient is φ = 47017584.

The previous prime is 72214039. The next prime is 72214063. The reversal of 72214053 is 35041227.

It is not a de Polignac number, because 72214053 - 26 = 72213989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72214063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27600 + ... + 30102.

It is an arithmetic number, because the mean of its divisors is an integer number (6159840).

Almost surely, 272214053 is an apocalyptic number.

It is an amenable number.

72214053 is a deficient number, since it is larger than the sum of its proper divisors (26343387).

72214053 is a wasteful number, since it uses less digits than its factorization.

72214053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 72214053 is about 8497.8852075090. The cubic root of 72214053 is about 416.4286235688.

The spelling of 72214053 in words is "seventy-two million, two hundred fourteen thousand, fifty-three".

Divisors: 1 3 59 163 177 489 2503 7509 9617 28851 147677 407989 443031 1223967 24071351 72214053