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152243790 = 235311271289
BaseRepresentation
bin10010001001100…
…00111001001110
3101121110210012220
421010300321032
5302433300130
623035040210
73526023306
oct1104607116
9347423186
10152243790
1178a35016
1242ba0066
13257062aa
1416310606
15d574410
hex9130e4e

152243790 has 64 divisors (see below), whose sum is σ = 380436480. Its totient is φ = 38949120.

The previous prime is 152243771. The next prime is 152243801. The reversal of 152243790 is 97342251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117466 + ... + 118754.

It is an arithmetic number, because the mean of its divisors is an integer number (5944320).

Almost surely, 2152243790 is an apocalyptic number.

152243790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 152243790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190218240).

152243790 is an abundant number, since it is smaller than the sum of its proper divisors (228192690).

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

152243790 is a wasteful number, since it uses less digits than its factorization.

152243790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 152243790 is about 12338.7110347880. The cubic root of 152243790 is about 533.9654973570.

The spelling of 152243790 in words is "one hundred fifty-two million, two hundred forty-three thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 127 155 186 254 310 381 465 635 762 930 1270 1289 1905 2578 3810 3867 3937 6445 7734 7874 11811 12890 19335 19685 23622 38670 39370 39959 59055 79918 118110 119877 163703 199795 239754 327406 399590 491109 599385 818515 982218 1198770 1637030 2455545 4911090 5074793 10149586 15224379 25373965 30448758 50747930 76121895 152243790