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26980929 = 326314751
BaseRepresentation
bin110011011101…
…1001001000001
31212202202212200
41212323021001
523401342204
62402143413
7445222413
oct146731101
955682780
1026980929
1114259198
129051b69
135788a61
1438249b3
15257e539
hex19bb241

26980929 has 12 divisors (see below), whose sum is σ = 39042432. Its totient is φ = 17955000.

The previous prime is 26980883. The next prime is 26980939. The reversal of 26980929 is 92908962.

It is not a de Polignac number, because 26980929 - 27 = 26980801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26980939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3304 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (3253536).

Almost surely, 226980929 is an apocalyptic number.

It is an amenable number.

26980929 is a deficient number, since it is larger than the sum of its proper divisors (12061503).

26980929 is a wasteful number, since it uses less digits than its factorization.

26980929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388 (or 5385 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 26980929 is about 5194.3169907121. The cubic root of 26980929 is about 299.9293500299.

The spelling of 26980929 in words is "twenty-six million, nine hundred eighty thousand, nine hundred twenty-nine".

Divisors: 1 3 9 631 1893 4751 5679 14253 42759 2997881 8993643 26980929