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151224660 = 22325840137
BaseRepresentation
bin10010000001110…
…00000101010100
3101112120000020100
421000320011110
5302203142120
623001134100
73514250136
oct1100700524
9345500210
10151224660
11783a9364
124278a330
132543a462
1416127056
15d422490
hex9038154

151224660 has 36 divisors (see below), whose sum is σ = 458715348. Its totient is φ = 40326528.

The previous prime is 151224641. The next prime is 151224713. The reversal of 151224660 is 66422151.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 131882256 = 4398^2 + 11484^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419889 + ... + 420248.

It is an arithmetic number, because the mean of its divisors is an integer number (12742093).

Almost surely, 2151224660 is an apocalyptic number.

151224660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151224660 is an abundant number, since it is smaller than the sum of its proper divisors (307490688).

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

151224660 is a wasteful number, since it uses less digits than its factorization.

151224660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840152 (or 840147 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 151224660 is about 12297.3436155944. The cubic root of 151224660 is about 532.7713620541.

The spelling of 151224660 in words is "one hundred fifty-one million, two hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 840137 1680274 2520411 3360548 4200685 5040822 7561233 8401370 10081644 12602055 15122466 16802740 25204110 30244932 37806165 50408220 75612330 151224660