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152730 = 23251697
BaseRepresentation
bin100101010010011010
321202111200
4211102122
514341410
63135030
71204164
oct452232
9252450
10152730
11a4826
1274476
1354696
143d934
15303c0
hex2549a

152730 has 24 divisors (see below), whose sum is σ = 397332. Its totient is φ = 40704.

The previous prime is 152729. The next prime is 152753. The reversal of 152730 is 37251.

It can be written as a sum of positive squares in 2 ways, for example, as 145161 + 7569 = 381^2 + 87^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 53 + 76 + 215 + 37 + 0 .

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, 759 + ... + 938.

2152730 is an apocalyptic number.

152730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152730 is an abundant number, since it is smaller than the sum of its proper divisors (244602).

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

152730 is a wasteful number, since it uses less digits than its factorization.

152730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 152730 is about 390.8068576676. The cubic root of 152730 is about 53.4533322330.

Adding to 152730 its reverse (37251), we get a palindrome (189981).

The spelling of 152730 in words is "one hundred fifty-two thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1697 3394 5091 8485 10182 15273 16970 25455 30546 50910 76365 152730