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26129211428 = 2231293719179
BaseRepresentation
bin11000010101011011…
…000010000000100100
32111102222201110200102
4120111123002000210
5412003034231203
620000435403232
71613335426655
oct302533020044
974388643612
1026129211428
1110099293311
125092753518
132605474268
14139c32b52c
15a2ddc8888
hex6156c2024

26129211428 has 24 divisors (see below), whose sum is σ = 47362318080. Its totient is φ = 12599998560.

The previous prime is 26129211401. The next prime is 26129211461. The reversal of 26129211428 is 82411292162.

It is a junction number, because it is equal to n+sod(n) for n = 26129211391 and 26129211400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323258 + ... + 395921.

It is an arithmetic number, because the mean of its divisors is an integer number (1973429920).

Almost surely, 226129211428 is an apocalyptic number.

It is an amenable number.

26129211428 is a deficient number, since it is larger than the sum of its proper divisors (21233106652).

26129211428 is a wasteful number, since it uses less digits than its factorization.

26129211428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719507 (or 719505 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The spelling of 26129211428 in words is "twenty-six billion, one hundred twenty-nine million, two hundred eleven thousand, four hundred twenty-eight".

Divisors: 1 2 4 31 62 124 293 586 1172 9083 18166 36332 719179 1438358 2876716 22294549 44589098 89178196 210719447 421438894 842877788 6532302857 13064605714 26129211428