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26023149 = 3261107443
BaseRepresentation
bin110001101000…
…1010011101101
31210222010001100
41203101103231
523130220044
62325433313
7434123145
oct143212355
953863040
1026023149
1113764639
12886b839
135511b19
143655925
152440869
hex18d14ed

26023149 has 24 divisors (see below), whose sum is σ = 38649312. Its totient is φ = 16866720.

The previous prime is 26023093. The next prime is 26023157. The reversal of 26023149 is 94132062.

It is not a de Polignac number, because 26023149 - 212 = 26019053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26022149) 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 23 ways as a sum of consecutive naturals, for example, 58522 + ... + 58964.

It is an arithmetic number, because the mean of its divisors is an integer number (1610388).

Almost surely, 226023149 is an apocalyptic number.

It is an amenable number.

26023149 is a deficient number, since it is larger than the sum of its proper divisors (12626163).

26023149 is a wasteful number, since it uses less digits than its factorization.

26023149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 614 counting only the distinct ones).

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

The square root of 26023149 is about 5101.2889547643. The cubic root of 26023149 is about 296.3375023261.

It can be divided in two parts, 260 and 23149, that added together give a square (23409 = 1532).

The spelling of 26023149 in words is "twenty-six million, twenty-three thousand, one hundred forty-nine".

Divisors: 1 3 9 61 107 183 321 443 549 963 1329 3987 6527 19581 27023 47401 58743 81069 142203 243207 426609 2891461 8674383 26023149