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13802940 = 2233525561
BaseRepresentation
bin110100101001…
…110110111100
3221222021002000
4310221312330
512013143230
61211502300
7225215544
oct64516674
927867060
1013802940
117878398
124757990
132b23828
141b94324
151329b60
hexd29dbc

13802940 has 48 divisors (see below), whose sum is σ = 42944160. Its totient is φ = 3680640.

The previous prime is 13802939. The next prime is 13802941. The reversal of 13802940 is 4920831.

It is an interprime number because it is at equal distance from previous prime (13802939) and next prime (13802941).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13802941) 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, 12241 + ... + 13320.

It is an arithmetic number, because the mean of its divisors is an integer number (894670).

Almost surely, 213802940 is an apocalyptic number.

13802940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13802940 is an abundant number, since it is smaller than the sum of its proper divisors (29141220).

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

13802940 is a wasteful number, since it uses less digits than its factorization.

13802940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25579 (or 25571 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13802940 is about 3715.2308138257. The cubic root of 13802940 is about 239.8780630579.

The spelling of 13802940 in words is "thirteen million, eight hundred two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 25561 51122 76683 102244 127805 153366 230049 255610 306732 383415 460098 511220 690147 766830 920196 1150245 1380294 1533660 2300490 2760588 3450735 4600980 6901470 13802940