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10400130420 = 22357310323053
BaseRepresentation
bin10011010111110010…
…10110010101110100
3222211210200100212120
421223321112111310
5132244413133140
64435554515540
7515503435641
oct115371262564
928753610776
1010400130420
114457669a09
122022b95bb0
13c99876234
1470935cdc8
1540d09a1d0
hex26be56574

10400130420 has 96 divisors (see below), whose sum is σ = 29807162112. Its totient is φ = 2708702208.

The previous prime is 10400130379. The next prime is 10400130439. The reversal of 10400130420 is 2403100401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10400130420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439614 + ... + 462666.

It is an arithmetic number, because the mean of its divisors is an integer number (310491272).

Almost surely, 210400130420 is an apocalyptic number.

10400130420 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 10400130420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14903581056).

10400130420 is an abundant number, since it is smaller than the sum of its proper divisors (19407031692).

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

10400130420 is a wasteful number, since it uses less digits than its factorization.

10400130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23241 (or 23239 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10400130420 its reverse (2403100401), we get a palindrome (12803230821).

It can be divided in two parts, 104001 and 30420, that added together give a triangular number (134421 = T518).

The spelling of 10400130420 in words is "ten billion, four hundred million, one hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 73 103 146 206 219 292 309 365 412 438 515 618 730 876 1030 1095 1236 1460 1545 2060 2190 3090 4380 6180 7519 15038 22557 23053 30076 37595 45114 46106 69159 75190 90228 92212 112785 115265 138318 150380 225570 230530 276636 345795 451140 461060 691590 1383180 1682869 2374459 3365738 4748918 5048607 6731476 7123377 8414345 9497836 10097214 11872295 14246754 16828690 20194428 23744590 25243035 28493508 33657380 35616885 47489180 50486070 71233770 100972140 142467540 173335507 346671014 520006521 693342028 866677535 1040013042 1733355070 2080026084 2600032605 3466710140 5200065210 10400130420