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26620413 = 3311971453
BaseRepresentation
bin110010110001…
…1000111111101
31212002110100020
41211203013331
523303323123
62350322353
7442161351
oct145430775
955073306
1026620413
1114032346
128ab93b9
135690931
14376d461
15250c7e3
hex19631fd

26620413 has 16 divisors (see below), whose sum is σ = 36850176. Its totient is φ = 17075520.

The previous prime is 26620411. The next prime is 26620417. The reversal of 26620413 is 31402662.

It is not a de Polignac number, because 26620413 - 21 = 26620411 is a prime.

It is a super-5 number, since 5×266204135 (a number of 38 digits) contains 55555 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26620411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17595 + ... + 19047.

It is an arithmetic number, because the mean of its divisors is an integer number (2303136).

Almost surely, 226620413 is an apocalyptic number.

It is an amenable number.

26620413 is a deficient number, since it is larger than the sum of its proper divisors (10229763).

26620413 is a wasteful number, since it uses less digits than its factorization.

26620413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 26620413 is about 5159.4973592396. The cubic root of 26620413 is about 298.5874819696.

The spelling of 26620413 in words is "twenty-six million, six hundred twenty thousand, four hundred thirteen".

Divisors: 1 3 31 93 197 591 1453 4359 6107 18321 45043 135129 286241 858723 8873471 26620413