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13020294 = 2371272441
BaseRepresentation
bin110001101010…
…110010000110
3220111111111010
4301222302012
511313122134
61143023050
7215446020
oct61526206
926444433
1013020294
117393381
12443aa86
13290b521
141a2d010
151222ce9
hexc6ac86

13020294 has 32 divisors (see below), whose sum is σ = 30007296. Its totient is φ = 3689280.

The previous prime is 13020251. The next prime is 13020307. The reversal of 13020294 is 49202031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13020294.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4114 + ... + 6554.

It is an arithmetic number, because the mean of its divisors is an integer number (937728).

Almost surely, 213020294 is an apocalyptic number.

13020294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13020294 is an abundant number, since it is smaller than the sum of its proper divisors (16987002).

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

13020294 is a wasteful number, since it uses less digits than its factorization.

13020294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13020294 is about 3608.3644494424. The cubic root of 13020294 is about 235.2557589700.

The spelling of 13020294 in words is "thirteen million, twenty thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 127 254 381 762 889 1778 2441 2667 4882 5334 7323 14646 17087 34174 51261 102522 310007 620014 930021 1860042 2170049 4340098 6510147 13020294