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26426764 = 2271379919
BaseRepresentation
bin110010011001…
…1110110001100
31211201121201001
41210303312030
523231124024
62342230044
7440423650
oct144636614
954647631
1026426764
1113a0a901
128a25324
135623750
14371ca60
1524c0244
hex1933d8c

26426764 has 48 divisors (see below), whose sum is σ = 57702400. Its totient is φ = 10310976.

The previous prime is 26426759. The next prime is 26426767. The reversal of 26426764 is 46762462.

It is not an unprimeable number, because it can be changed into a prime (26426767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28297 + ... + 29215.

Almost surely, 226426764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26426764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28851200).

26426764 is an abundant number, since it is smaller than the sum of its proper divisors (31275636).

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

26426764 is a wasteful number, since it uses less digits than its factorization.

26426764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1020 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 26426764 is about 5140.6968399236. The cubic root of 26426764 is about 297.8616988083.

It can be divided in two parts, 264 and 26764, that added together give a triangular number (27028 = T232).

The spelling of 26426764 in words is "twenty-six million, four hundred twenty-six thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 13 14 26 28 52 79 91 158 182 316 364 553 919 1027 1106 1838 2054 2212 3676 4108 6433 7189 11947 12866 14378 23894 25732 28756 47788 72601 83629 145202 167258 290404 334516 508207 943813 1016414 1887626 2032828 3775252 6606691 13213382 26426764