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102100143040 = 2657109418169
BaseRepresentation
bin101111100010110100…
…1001000101111000000
3100202112112102122220021
41133011221020233000
53133100114034130
6114523144223224
710243064616340
oct1370551105700
9322475378807
10102100143040
113a333961705
121795516ab14
13982194a72c
144d27d46d20
1529c87ce37a
hex17c5a48bc0

102100143040 has 112 divisors (see below), whose sum is σ = 280408075200. Its totient is φ = 34684526592.

The previous prime is 102100143011. The next prime is 102100143059. The reversal of 102100143040 is 40341001201.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35076 + ... + 453244.

Almost surely, 2102100143040 is an apocalyptic number.

102100143040 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 102100143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140204037600).

102100143040 is an abundant number, since it is smaller than the sum of its proper divisors (178307932160).

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

102100143040 is a wasteful number, since it uses less digits than its factorization.

102100143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418302 (or 418292 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102100143040 its reverse (40341001201), we get a palindrome (142441144241).

The spelling of 102100143040 in words is "one hundred two billion, one hundred million, one hundred forty-three thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 109 112 140 160 218 224 280 320 436 448 545 560 763 872 1090 1120 1526 1744 2180 2240 3052 3488 3815 4360 6104 6976 7630 8720 12208 15260 17440 24416 30520 34880 48832 61040 122080 244160 418169 836338 1672676 2090845 2927183 3345352 4181690 5854366 6690704 8363380 11708732 13381408 14635915 16726760 23417464 26762816 29271830 33453520 45580421 46834928 58543660 66907040 91160842 93669856 117087320 133814080 182321684 187339712 227902105 234174640 319062947 364643368 455804210 468349280 638125894 729286736 911608420 936698560 1276251788 1458573472 1595314735 1823216840 2552503576 2917146944 3190629470 3646433680 5105007152 6381258940 7292867360 10210014304 12762517880 14585734720 20420028608 25525035760 51050071520 102100143040