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13153890 = 2351947491
BaseRepresentation
bin110010001011…
…011001100010
3220202021202010
4302023121202
511331411030
61145533350
7216543351
oct62133142
926667663
1013153890
117474792
1244a4256
132957289
141a65998
15124c6b0
hexc8b662

13153890 has 64 divisors (see below), whose sum is σ = 34007040. Its totient is φ = 3245760.

The previous prime is 13153883. The next prime is 13153901. The reversal of 13153890 is 9835131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 26545 + ... + 27035.

It is an arithmetic number, because the mean of its divisors is an integer number (531360).

Almost surely, 213153890 is an apocalyptic number.

13153890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13153890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17003520).

13153890 is an abundant number, since it is smaller than the sum of its proper divisors (20853150).

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

13153890 is a wasteful number, since it uses less digits than its factorization.

13153890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13153890 is about 3626.8291936621. The cubic root of 13153890 is about 236.0576441590.

The spelling of 13153890 in words is "thirteen million, one hundred fifty-three thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 19 30 38 47 57 94 95 114 141 190 235 282 285 470 491 570 705 893 982 1410 1473 1786 2455 2679 2946 4465 4910 5358 7365 8930 9329 13395 14730 18658 23077 26790 27987 46154 46645 55974 69231 93290 115385 138462 139935 230770 279870 346155 438463 692310 876926 1315389 2192315 2630778 4384630 6576945 13153890