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16230840 = 2335135257
BaseRepresentation
bin111101111010…
…100110111000
31010112121112020
4331322212320
513123341330
61335514440
7254650143
oct75724670
933477466
1016230840
11918651a
125528a20
133493962
14222705a
151659210
hexf7a9b8

16230840 has 32 divisors (see below), whose sum is σ = 48692880. Its totient is φ = 4328192.

The previous prime is 16230829. The next prime is 16230853. The reversal of 16230840 is 4803261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16230840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67509 + ... + 67748.

Almost surely, 216230840 is an apocalyptic number.

16230840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16230840 is an abundant number, since it is smaller than the sum of its proper divisors (32462040).

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

16230840 is a wasteful number, since it uses less digits than its factorization.

16230840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135271 (or 135267 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16230840 is about 4028.7516677006. The cubic root of 16230840 is about 253.1902623979.

The spelling of 16230840 in words is "sixteen million, two hundred thirty thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 135257 270514 405771 541028 676285 811542 1082056 1352570 1623084 2028855 2705140 3246168 4057710 5410280 8115420 16230840