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969920021231213 = 13307243026815643
BaseRepresentation
bin1101110010001000110001101…
…0010100110111011001101101
311201012012110002221022010010012
43130202030122110313121231
52004112132200413344323
613314503035001423005
7411204260210266253
oct33442143224673155
94635173087263105
10969920021231213
11261056853249868
1290948bb879aa65
13328280b1008280
141317254551a5d3
15771eca3d49678
hex372231a53766d

969920021231213 has 8 divisors (see below), whose sum is σ = 1047931629056928. Its totient is φ = 892394467037424.

The previous prime is 969920021231171. The next prime is 969920021231219. The reversal of 969920021231213 is 312132120029969.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 969920021231213 - 216 = 969920021165677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969920021231219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121513403831 + ... + 121513411812.

It is an arithmetic number, because the mean of its divisors is an integer number (130991453632116).

Almost surely, 2969920021231213 is an apocalyptic number.

It is an amenable number.

969920021231213 is a deficient number, since it is larger than the sum of its proper divisors (78011607825715).

969920021231213 is a wasteful number, since it uses less digits than its factorization.

969920021231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243026815963.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 969920021231213 in words is "nine hundred sixty-nine trillion, nine hundred twenty billion, twenty-one million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 13 307 3991 243026815643 3159348603359 74609232402401 969920021231213