Search a number
-
+
72802652 = 22131400051
BaseRepresentation
bin1000101011011…
…10000101011100
312001222202110112
410111232011130
5122114141102
611120225152
71542545426
oct425560534
9161882415
1072802652
113810578a
122046b1b8
13121103c0
149951816
1565d1252
hex456e15c

72802652 has 12 divisors (see below), whose sum is σ = 137205096. Its totient is φ = 33601200.

The previous prime is 72802651. The next prime is 72802657. The reversal of 72802652 is 25620827.

It is a super-2 number, since 2×728026522 = 10600452276466208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72802651) 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 3 ways as a sum of consecutive naturals, for example, 699974 + ... + 700077.

It is an arithmetic number, because the mean of its divisors is an integer number (11433758).

Almost surely, 272802652 is an apocalyptic number.

It is an amenable number.

72802652 is a deficient number, since it is larger than the sum of its proper divisors (64402444).

72802652 is a wasteful number, since it uses less digits than its factorization.

72802652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400068 (or 1400066 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 72802652 is about 8532.4470112624. The cubic root of 72802652 is about 417.5569659441.

The spelling of 72802652 in words is "seventy-two million, eight hundred two thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 52 1400051 2800102 5600204 18200663 36401326 72802652