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20710152 = 23321915139
BaseRepresentation
bin100111100000…
…0001100001000
31102222011222200
41033000030020
520300211102
62015520200
7341014311
oct117001410
942864880
1020710152
1110765931
126b29060
1343a1738
142a71608
151c4151c
hex13c0308

20710152 has 48 divisors (see below), whose sum is σ = 59046000. Its totient is φ = 6539616.

The previous prime is 20710141. The next prime is 20710159. The reversal of 20710152 is 25101702.

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

It is not an unprimeable number, because it can be changed into a prime (20710159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6202 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (1230125).

Almost surely, 220710152 is an apocalyptic number.

It is an amenable number.

20710152 is an abundant number, since it is smaller than the sum of its proper divisors (38335848).

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

20710152 is a wasteful number, since it uses less digits than its factorization.

20710152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170 (or 15163 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 20710152 is about 4550.8408014344. The cubic root of 20710152 is about 274.6172173000.

Adding to 20710152 its reverse (25101702), we get a palindrome (45811854).

The spelling of 20710152 in words is "twenty million, seven hundred ten thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 15139 30278 45417 60556 90834 121112 136251 181668 272502 287641 363336 545004 575282 862923 1090008 1150564 1725846 2301128 2588769 3451692 5177538 6903384 10355076 20710152