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152214972 = 223721319913
BaseRepresentation
bin10010001001010…
…01110110111100
3101121102022200120
421010221312330
5302431334342
623034254540
73525543300
oct1104516674
9347368616
10152214972
1178a153a8
1242b87450
13256c6140
1416303d00
15d56aaec
hex9129dbc

152214972 has 72 divisors (see below), whose sum is σ = 444958416. Its totient is φ = 40142592.

The previous prime is 152214917. The next prime is 152215013. The reversal of 152214972 is 279412251.

152214972 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2313 + ... + 17600.

It is an arithmetic number, because the mean of its divisors is an integer number (6179978).

Almost surely, 2152214972 is an apocalyptic number.

152214972 is a gapful number since it is divisible by the number (12) 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 152214972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222479208).

152214972 is an abundant number, since it is smaller than the sum of its proper divisors (292743444).

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

152214972 is a wasteful number, since it uses less digits than its factorization.

152214972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19947 (or 19938 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 152214972 is about 12337.5431914138. The cubic root of 152214972 is about 533.9318040534.

The spelling of 152214972 in words is "one hundred fifty-two million, two hundred fourteen thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 78 84 91 98 147 156 182 196 273 294 364 546 588 637 1092 1274 1911 2548 3822 7644 19913 39826 59739 79652 119478 139391 238956 258869 278782 418173 517738 557564 776607 836346 975737 1035476 1553214 1672692 1812083 1951474 2927211 3106428 3624166 3902948 5436249 5854422 7248332 10872498 11708844 12684581 21744996 25369162 38053743 50738324 76107486 152214972