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10190540280 = 233584921169
BaseRepresentation
bin10010111110110011…
…10100110111111000
3222022012022002020210
421133121310313320
5131332234242110
64403110351120
7510350106654
oct113731646770
928265262223
1010190540280
11435a326818
121b8495b4a0
13c65311abb
146c95a1a64
153e9999520
hex25f674df8

10190540280 has 32 divisors (see below), whose sum is σ = 30571621200. Its totient is φ = 2717477376.

The previous prime is 10190540279. The next prime is 10190540281. The reversal of 10190540280 is 8204509101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10190540279) and next prime (10190540281).

It is a super-2 number, since 2×101905402802 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10190540281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42460465 + ... + 42460704.

Almost surely, 210190540280 is an apocalyptic number.

10190540280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10190540280 is an abundant number, since it is smaller than the sum of its proper divisors (20381080920).

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

10190540280 is a wasteful number, since it uses less digits than its factorization.

10190540280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84921183 (or 84921179 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 10190540280 in words is "ten billion, one hundred ninety million, five hundred forty thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 84921169 169842338 254763507 339684676 424605845 509527014 679369352 849211690 1019054028 1273817535 1698423380 2038108056 2547635070 3396846760 5095270140 10190540280