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153270 = 232513131
BaseRepresentation
bin100101011010110110
321210020200
4211122312
514401040
63141330
71205565
oct453266
9253220
10153270
11a5177
1274846
13549c0
143dbdc
1530630
hex256b6

153270 has 48 divisors (see below), whose sum is σ = 432432. Its totient is φ = 37440.

The previous prime is 153269. The next prime is 153271. The reversal of 153270 is 72351.

It is an interprime number because it is at equal distance from previous prime (153269) and next prime (153271).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1105 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (9009).

2153270 is an apocalyptic number.

153270 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 153270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216216).

153270 is an abundant number, since it is smaller than the sum of its proper divisors (279162).

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

153270 is a wasteful number, since it uses less digits than its factorization.

153270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 154 counting only the distinct ones).

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

The square root of 153270 is about 391.4971264262. The cubic root of 153270 is about 53.5162555780.

153270 divided by its sum of digits (18) gives a triangular number (8515 = T130).

The spelling of 153270 in words is "one hundred fifty-three thousand, two hundred seventy".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 131 195 234 262 390 393 585 655 786 1170 1179 1310 1703 1965 2358 3406 3930 5109 5895 8515 10218 11790 15327 17030 25545 30654 51090 76635 153270