Search a number
-
+
152779668 = 22312731639
BaseRepresentation
bin10010001101100…
…11101110010100
3101122111000022020
421012303232110
5303102422133
623054333140
73533414526
oct1106635624
9348430266
10152779668
1179270698
12431ba1b0
1325863192
141640da16
15d62d0b3
hex91b3b94

152779668 has 12 divisors (see below), whose sum is σ = 356485920. Its totient is φ = 50926552.

The previous prime is 152779661. The next prime is 152779673. The reversal of 152779668 is 866977251.

152779668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 152779668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152779661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365808 + ... + 6365831.

It is an arithmetic number, because the mean of its divisors is an integer number (29707160).

Almost surely, 2152779668 is an apocalyptic number.

It is an amenable number.

152779668 is an abundant number, since it is smaller than the sum of its proper divisors (203706252).

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

152779668 is a wasteful number, since it uses less digits than its factorization.

152779668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731646 (or 12731644 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 152779668 is about 12360.4072748433. The cubic root of 152779668 is about 534.5912597003.

The spelling of 152779668 in words is "one hundred fifty-two million, seven hundred seventy-nine thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 12731639 25463278 38194917 50926556 76389834 152779668