Search a number
-
+
151576640 = 2651812617
BaseRepresentation
bin10010000100011…
…10000001000000
3101120012220001122
421002032001000
5302300423030
623012451412
73520244255
oct1102160100
9346186048
10151576640
1178619856
1242919b68
1325531727
14161b942c
15d4918e5
hex908e040

151576640 has 56 divisors (see below), whose sum is σ = 363074712. Its totient is φ = 60272640.

The previous prime is 151576619. The next prime is 151576673. The reversal of 151576640 is 46675151.

151576640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12902464 + 138674176 = 3592^2 + 11776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151576640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56612 + ... + 59228.

It is an arithmetic number, because the mean of its divisors is an integer number (6483477).

Almost surely, 2151576640 is an apocalyptic number.

151576640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151576640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181537356).

151576640 is an abundant number, since it is smaller than the sum of its proper divisors (211498072).

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

151576640 is a wasteful number, since it uses less digits than its factorization.

151576640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 151576640 is about 12311.6465186424. The cubic root of 151576640 is about 533.1843889636.

The spelling of 151576640 in words is "one hundred fifty-one million, five hundred seventy-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 181 320 362 724 905 1448 1810 2617 2896 3620 5234 5792 7240 10468 11584 13085 14480 20936 26170 28960 41872 52340 57920 83744 104680 167488 209360 418720 473677 837440 947354 1894708 2368385 3789416 4736770 7578832 9473540 15157664 18947080 30315328 37894160 75788320 151576640