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172054770413 = 1516371134649
BaseRepresentation
bin1010000000111101000…
…0110111001011101101
3121110002210101221020012
42200033100313023231
510304332010123123
6211012454503005
715300451263311
oct2401720671355
9543083357205
10172054770413
1166a71483639
1229418964a65
13132bc869c76
14848290bb41
15471ee2b378
hex280f4372ed

172054770413 has 4 divisors (see below), whose sum is σ = 172056056700. Its totient is φ = 172053484128.

The previous prime is 172054770401. The next prime is 172054770421. The reversal of 172054770413 is 314077450271.

It is a happy number.

172054770413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104586266404 + 67468504009 = 323398^2 + 259747^2 .

It is a cyclic number.

It is not a de Polignac number, because 172054770413 - 222 = 172050576109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172054700413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415688 + ... + 718961.

It is an arithmetic number, because the mean of its divisors is an integer number (43014014175).

Almost surely, 2172054770413 is an apocalyptic number.

It is an amenable number.

172054770413 is a deficient number, since it is larger than the sum of its proper divisors (1286287).

172054770413 is a wasteful number, since it uses less digits than its factorization.

172054770413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286286.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 172054770413 in words is "one hundred seventy-two billion, fifty-four million, seven hundred seventy thousand, four hundred thirteen".

Divisors: 1 151637 1134649 172054770413