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269157868 = 22723417947
BaseRepresentation
bin10000000010110…
…000010111101100
3200202110122011221
4100002300113230
51022401022433
642412553124
76445542550
oct2002602754
9622418157
10269157868
11128a29321
12761827a4
13439bc715
1427a65860
151896a72d
hex100b05ec

269157868 has 24 divisors (see below), whose sum is σ = 561722112. Its totient is φ = 110337744.

The previous prime is 269157851. The next prime is 269157877. The reversal of 269157868 is 868751962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208330 + ... + 209617.

It is an arithmetic number, because the mean of its divisors is an integer number (23405088).

Almost surely, 2269157868 is an apocalyptic number.

269157868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

269157868 is an abundant number, since it is smaller than the sum of its proper divisors (292564244).

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

269157868 is a wasteful number, since it uses less digits than its factorization.

269157868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417981 (or 417979 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 269157868 is about 16406.0314518777. The cubic root of 269157868 is about 645.6577373945.

The spelling of 269157868 in words is "two hundred sixty-nine million, one hundred fifty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 417947 835894 1671788 2925629 5851258 9612781 11702516 19225562 38451124 67289467 134578934 269157868