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26913420 = 22325149519
BaseRepresentation
bin110011010101…
…0101010001100
31212122100021100
41212222222030
523342212140
62400503100
7444521532
oct146525214
955570240
1026913420
11142124a6
12901aa90
135764101
143808152
152569530
hex19aaa8c

26913420 has 36 divisors (see below), whose sum is σ = 81637920. Its totient is φ = 7176864.

The previous prime is 26913413. The next prime is 26913457. The reversal of 26913420 is 2431962.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74580 + ... + 74939.

It is an arithmetic number, because the mean of its divisors is an integer number (2267720).

Almost surely, 226913420 is an apocalyptic number.

26913420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26913420 is an abundant number, since it is smaller than the sum of its proper divisors (54724500).

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

26913420 is a wasteful number, since it uses less digits than its factorization.

26913420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149534 (or 149529 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 26913420 is about 5187.8145687756. The cubic root of 26913420 is about 299.6789899644.

It can be divided in two parts, 269 and 13420, that added together give a square (13689 = 1172).

The spelling of 26913420 in words is "twenty-six million, nine hundred thirteen thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 149519 299038 448557 598076 747595 897114 1345671 1495190 1794228 2242785 2691342 2990380 4485570 5382684 6728355 8971140 13456710 26913420