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10642920 = 2335312861
BaseRepresentation
bin101000100110…
…010111101000
3202000201100020
4220212113220
510211033140
61020040440
7156314631
oct50462750
922021306
1010642920
11600a202
123693120
1322883b2
1415b0888
15e036d0
hexa265e8

10642920 has 64 divisors (see below), whose sum is σ = 32970240. Its totient is φ = 2745600.

The previous prime is 10642861. The next prime is 10642927. The reversal of 10642920 is 2924601.

It is a super-2 number, since 2×106429202 = 226543492252800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (10642927) 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 15 ways as a sum of consecutive naturals, for example, 2290 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (515160).

Almost surely, 210642920 is an apocalyptic number.

10642920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10642920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16485120).

10642920 is an abundant number, since it is smaller than the sum of its proper divisors (22327320).

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

10642920 is a wasteful number, since it uses less digits than its factorization.

10642920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 10642920 is about 3262.3488470732. The cubic root of 10642920 is about 219.9650082088.

The spelling of 10642920 in words is "ten million, six hundred forty-two thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 93 120 124 155 186 248 310 372 465 620 744 930 1240 1860 2861 3720 5722 8583 11444 14305 17166 22888 28610 34332 42915 57220 68664 85830 88691 114440 171660 177382 266073 343320 354764 443455 532146 709528 886910 1064292 1330365 1773820 2128584 2660730 3547640 5321460 10642920