Search a number
-
+
72974982 = 2317715441
BaseRepresentation
bin1000101100110…
…00001010000110
312002022111212010
410112120022012
5122140144412
611124035050
71544164023
oct426301206
9162274763
1072974982
1138213203
1220532a86
1312170982
14999854a
15661733c
hex4598286

72974982 has 16 divisors (see below), whose sum is σ = 154535472. Its totient is φ = 22894080.

The previous prime is 72974981. The next prime is 72975017. The reversal of 72974982 is 28947927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72974981) 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, 357619 + ... + 357822.

It is an arithmetic number, because the mean of its divisors is an integer number (9658467).

Almost surely, 272974982 is an apocalyptic number.

72974982 is an abundant number, since it is smaller than the sum of its proper divisors (81560490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72974982 is a wasteful number, since it uses less digits than its factorization.

72974982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715463.

The product of its digits is 508032, while the sum is 48.

The square root of 72974982 is about 8542.5395521472. The cubic root of 72974982 is about 417.8861704807.

The spelling of 72974982 in words is "seventy-two million, nine hundred seventy-four thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 715441 1430882 2146323 4292646 12162497 24324994 36487491 72974982