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172054770402 = 23181514730781
BaseRepresentation
bin1010000000111101000…
…0110111001011100010
3121110002210101221012210
42200033100313023202
510304332010123102
6211012454502550
715300451263264
oct2401720671342
9543083357183
10172054770402
1166a71483629
1229418964a56
13132bc869c68
14848290bb34
15471ee2b36c
hex280f4372e2

172054770402 has 32 divisors (see below), whose sum is σ = 346089167424. Its totient is φ = 57021796800.

The previous prime is 172054770401. The next prime is 172054770421. The reversal of 172054770402 is 204077450271.

172054770402 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1720547704023 (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172054770401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5574252 + ... + 5605032.

It is an arithmetic number, because the mean of its divisors is an integer number (10815286482).

Almost surely, 2172054770402 is an apocalyptic number.

172054770402 is an abundant number, since it is smaller than the sum of its proper divisors (174034397022).

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

172054770402 is a wasteful number, since it uses less digits than its factorization.

172054770402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36114.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 172054770402 in words is "one hundred seventy-two billion, fifty-four million, seven hundred seventy thousand, four hundred two".

Divisors: 1 2 3 6 181 362 543 1086 5147 10294 15441 30781 30882 61562 92343 184686 931607 1863214 2794821 5571361 5589642 11142722 16714083 33428166 158429807 316859614 475289421 950578842 28675795067 57351590134 86027385201 172054770402