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100143390 = 23523913967
BaseRepresentation
bin1011111100000…
…01000100011110
320222102210220110
411332001010132
5201114042030
613534230450
72324130144
oct576010436
9228383813
10100143390
115158a236
1229655426
1317993b59
14d42b594
158bd21b0
hex5f8111e

100143390 has 32 divisors (see below), whose sum is σ = 241367040. Its totient is φ = 26591264.

The previous prime is 100143377. The next prime is 100143397. The reversal of 100143390 is 93341001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100143397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 14153.

It is an arithmetic number, because the mean of its divisors is an integer number (7542720).

Almost surely, 2100143390 is an apocalyptic number.

100143390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100143390 is an abundant number, since it is smaller than the sum of its proper divisors (141223650).

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

100143390 is a wasteful number, since it uses less digits than its factorization.

100143390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14216.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 100143390 is about 10007.1669317545. The cubic root of 100143390 is about 464.3806298819.

Adding to 100143390 its reverse (93341001), we get a palindrome (193484391).

The spelling of 100143390 in words is "one hundred million, one hundred forty-three thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 239 478 717 1195 1434 2390 3585 7170 13967 27934 41901 69835 83802 139670 209505 419010 3338113 6676226 10014339 16690565 20028678 33381130 50071695 100143390