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13798725 = 352251733
BaseRepresentation
bin110100101000…
…110101000101
3221222001021220
4310220311011
512013024400
61211430553
7225200343
oct64506505
927861256
1013798725
117875206
124755459
132b21935
141b92993
1513287a0
hexd28d45

13798725 has 24 divisors (see below), whose sum is σ = 22936032. Its totient is φ = 7320000.

The previous prime is 13798723. The next prime is 13798727. The reversal of 13798725 is 52789731.

It is an interprime number because it is at equal distance from previous prime (13798723) and next prime (13798727).

It is not a de Polignac number, because 13798725 - 21 = 13798723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13798723) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 18459 + ... + 19191.

It is an arithmetic number, because the mean of its divisors is an integer number (955668).

Almost surely, 213798725 is an apocalyptic number.

13798725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13798725 is a deficient number, since it is larger than the sum of its proper divisors (9137307).

13798725 is a wasteful number, since it uses less digits than its factorization.

13798725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 992 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 13798725 is about 3714.6635110061. The cubic root of 13798725 is about 239.8536434060.

The spelling of 13798725 in words is "thirteen million, seven hundred ninety-eight thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 251 733 753 1255 2199 3665 3765 6275 10995 18325 18825 54975 183983 551949 919915 2759745 4599575 13798725