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172028262813 = 31179247326683
BaseRepresentation
bin1010000000110110101…
…1101111100110011101
3121110000221112012122020
42200031223233212131
510304303213402223
6211010110410353
715300010051551
oct2401553574635
9543027465566
10172028262813
1166a58519030
122940bb009b9
13132b72187b4
14847d1ab861
15471c9421e3
hex280daef99d

172028262813 has 32 divisors (see below), whose sum is σ = 253502269440. Its totient is φ = 102894330240.

The previous prime is 172028262811. The next prime is 172028262841. The reversal of 172028262813 is 318262820271.

It is not a de Polignac number, because 172028262813 - 21 = 172028262811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172028262811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6433770 + ... + 6460452.

It is an arithmetic number, because the mean of its divisors is an integer number (7921945920).

Almost surely, 2172028262813 is an apocalyptic number.

It is an amenable number.

172028262813 is a deficient number, since it is larger than the sum of its proper divisors (81474006627).

172028262813 is a wasteful number, since it uses less digits than its factorization.

172028262813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29249.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 172028262813 in words is "one hundred seventy-two billion, twenty-eight million, two hundred sixty-two thousand, eight hundred thirteen".

Divisors: 1 3 11 33 79 237 869 2473 2607 7419 26683 27203 80049 81609 195367 293513 586101 880539 2107957 2149037 6323871 6447111 23187527 65987059 69562581 197961177 725857649 2177572947 5212977661 15638932983 57342754271 172028262813