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172752020 = 225710611163
BaseRepresentation
bin10100100101111…
…11110010010100
3110001001201012222
422102333302110
5323211031040
625050401512
74165240130
oct1222776224
9401051188
10172752020
1189572171
1249a30298
1329a36b3c
1418d2c3c0
1510275bb5
hexa4bfc94

172752020 has 48 divisors (see below), whose sum is σ = 415352448. Its totient is φ = 59122560.

The previous prime is 172751989. The next prime is 172752023. The reversal of 172752020 is 20257271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172752023) 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, 147959 + ... + 149121.

It is an arithmetic number, because the mean of its divisors is an integer number (8653176).

Almost surely, 2172752020 is an apocalyptic number.

172752020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172752020 is an abundant number, since it is smaller than the sum of its proper divisors (242600428).

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

172752020 is a wasteful number, since it uses less digits than its factorization.

172752020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 172752020 is about 13143.5162722918. The cubic root of 172752020 is about 556.9391035411.

The spelling of 172752020 in words is "one hundred seventy-two million, seven hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1061 1163 2122 2326 4244 4652 5305 5815 7427 8141 10610 11630 14854 16282 21220 23260 29708 32564 37135 40705 74270 81410 148540 162820 1233943 2467886 4935772 6169715 8637601 12339430 17275202 24678860 34550404 43188005 86376010 172752020