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52623020 = 225101109239
BaseRepresentation
bin1100100010111…
…1011010101100
310200000112012202
43020233122230
5101432414040
65115521032
71206200612
oct310573254
9120015182
1052623020
11277824aa
1215759178
13ab962a8
146dbb6b2
154947015
hex322f6ac

52623020 has 48 divisors (see below), whose sum is σ = 113097600. Its totient is φ = 20563200.

The previous prime is 52623019. The next prime is 52623031. The reversal of 52623020 is 2032625.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52622983 and 52623001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220061 + ... + 220299.

It is an arithmetic number, because the mean of its divisors is an integer number (2356200).

Almost surely, 252623020 is an apocalyptic number.

It is an amenable number.

52623020 is an abundant number, since it is smaller than the sum of its proper divisors (60474580).

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

52623020 is a wasteful number, since it uses less digits than its factorization.

52623020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52623020 is about 7254.1725923774. The cubic root of 52623020 is about 374.7358613999.

Adding to 52623020 its reverse (2032625), we get a palindrome (54655645).

The spelling of 52623020 in words is "fifty-two million, six hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 101 109 202 218 239 404 436 478 505 545 956 1010 1090 1195 2020 2180 2390 4780 11009 22018 24139 26051 44036 48278 52102 55045 96556 104204 110090 120695 130255 220180 241390 260510 482780 521020 2631151 5262302 10524604 13155755 26311510 52623020