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10100444240 = 245139990247
BaseRepresentation
bin10010110100000100…
…01000110001010000
3222001220202201201102
421122002020301100
5131141203203430
64350131323532
7505204234205
oct113202106120
928056681642
1010100444240
11431348a287
121b5a7505a8
13c4c758233
146bb62bcac
153e1aee345
hex25a088c50

10100444240 has 40 divisors (see below), whose sum is σ = 23500579200. Its totient is φ = 4037245056.

The previous prime is 10100444231. The next prime is 10100444257. The reversal of 10100444240 is 4244400101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 66797 + ... + 157043.

It is an arithmetic number, because the mean of its divisors is an integer number (587514480).

Almost surely, 210100444240 is an apocalyptic number.

10100444240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100444240 is an abundant number, since it is smaller than the sum of its proper divisors (13400134960).

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

10100444240 is a wasteful number, since it uses less digits than its factorization.

10100444240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91659 (or 91653 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 10100444240 its reverse (4244400101), we get a palindrome (14344844341).

The spelling of 10100444240 in words is "ten billion, one hundred million, four hundred forty-four thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1399 2798 5596 6995 11192 13990 22384 27980 55960 90247 111920 180494 360988 451235 721976 902470 1443952 1804940 3609880 7219760 126255553 252511106 505022212 631277765 1010044424 1262555530 2020088848 2525111060 5050222120 10100444240