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13402230 = 2353114411
BaseRepresentation
bin110011001000…
…000001110110
3221012220101220
4303020001312
511412332410
61155131210
7221626362
oct63100166
927186356
1013402230
117624326
1245a3b06
132a1331a
141acc2a2
15129b070
hexcc8076

13402230 has 32 divisors (see below), whose sum is σ = 33205248. Its totient is φ = 3458400.

The previous prime is 13402229. The next prime is 13402237. The reversal of 13402230 is 3220431.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402237) 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, 6276 + ... + 8135.

It is an arithmetic number, because the mean of its divisors is an integer number (1037664).

Almost surely, 213402230 is an apocalyptic number.

13402230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13402230 is an abundant number, since it is smaller than the sum of its proper divisors (19803018).

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

13402230 is a wasteful number, since it uses less digits than its factorization.

13402230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14452.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13402230 is about 3660.9056256615. The cubic root of 13402230 is about 237.5339489789.

Adding to 13402230 its reverse (3220431), we get a palindrome (16622661).

It can be divided in two parts, 1340 and 2230, that added together give a triangular number (3570 = T84).

The spelling of 13402230 in words is "thirteen million, four hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 14411 28822 43233 72055 86466 144110 216165 432330 446741 893482 1340223 2233705 2680446 4467410 6701115 13402230