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100142130 = 23511734157
BaseRepresentation
bin1011111100000…
…00110000110010
320222102202011210
411332000300302
5201114022010
613534220550
72324123364
oct576006062
9228382153
10100142130
11515892a0
1229654756
13179933ca
14d42ad34
158bd1b20
hex5f80c32

100142130 has 64 divisors (see below), whose sum is σ = 265845888. Its totient is φ = 23938560.

The previous prime is 100142129. The next prime is 100142149. The reversal of 100142130 is 31241001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22012 + ... + 26168.

It is an arithmetic number, because the mean of its divisors is an integer number (4153842).

Almost surely, 2100142130 is an apocalyptic number.

100142130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100142130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132922944).

100142130 is an abundant number, since it is smaller than the sum of its proper divisors (165703758).

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

100142130 is a wasteful number, since it uses less digits than its factorization.

100142130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100142130 is about 10007.1039766758. The cubic root of 100142130 is about 464.3786822677.

Adding to 100142130 its reverse (31241001), we get a palindrome (131383131).

The spelling of 100142130 in words is "one hundred million, one hundred forty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 73 110 146 165 219 330 365 438 730 803 1095 1606 2190 2409 4015 4157 4818 8030 8314 12045 12471 20785 24090 24942 41570 45727 62355 91454 124710 137181 228635 274362 303461 457270 606922 685905 910383 1371810 1517305 1820766 3034610 3338071 4551915 6676142 9103830 10014213 16690355 20028426 33380710 50071065 100142130