Search a number
72102076 = 2221185429
BaseRepresentation
bin1000100110000…
…11000010111100
312000200011110021
410103003002330
5121424231301
611053221524
71533600064
oct423030274
9160604407
1072102076
11377773a2
12201918a4
1311c26567
14980c3a4
1564e38a1
hex44c30bc

72102076 has 12 divisors (see below), whose sum is σ = 126778120. Its totient is φ = 35879760.

The previous prime is 72102059. The next prime is 72102077. The reversal of 72102076 is 67020127.

It is a self number, because there is not a number n which added to its sum of digits gives 72102076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72102077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41871 + ... + 43558.

Almost surely, 272102076 is an apocalyptic number.

It is an amenable number.

72102076 is a deficient number, since it is larger than the sum of its proper divisors (54676044).

72102076 is a wasteful number, since it uses less digits than its factorization.

72102076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85644 (or 85642 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72102076 is about 8491.2941298721. The cubic root of 72102076 is about 416.2132705134.

The spelling of 72102076 in words is "seventy-two million, one hundred two thousand, seventy-six".