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53070 = 2352961
BaseRepresentation
bin1100111101001110
32200210120
430331032
53144240
61045410
7310503
oct147516
980716
1053070
1136966
1226866
131b204
14154aa
1510ad0
hexcf4e

53070 has 32 divisors (see below), whose sum is σ = 133920. Its totient is φ = 13440.

The previous prime is 53069. The next prime is 53077. The reversal of 53070 is 7035.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (4185).

253070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66960).

53070 is an abundant number, since it is smaller than the sum of its proper divisors (80850).

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

53070 is a wasteful number, since it uses less digits than its factorization.

53070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100.

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 53070 is about 230.3692687838. The cubic root of 53070 is about 37.5793873742.

The spelling of 53070 in words is "fifty-three thousand, seventy".

Divisors: 1 2 3 5 6 10 15 29 30 58 61 87 122 145 174 183 290 305 366 435 610 870 915 1769 1830 3538 5307 8845 10614 17690 26535 53070