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104143420 = 22543831459
BaseRepresentation
bin1100011010100…
…01101000111100
321020222000220201
412031101220330
5203130042140
614200053244
72403130063
oct615215074
9236860821
10104143420
1153871547
122aa64224
1318764734
14db8d1da
15922249a
hex6351a3c

104143420 has 48 divisors (see below), whose sum is σ = 226638720. Its totient is φ = 40170816.

The previous prime is 104143397. The next prime is 104143441. The reversal of 104143420 is 24341401.

It is a congruent number.

It is an unprimeable number.

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, 70651 + ... + 72109.

It is an arithmetic number, because the mean of its divisors is an integer number (4721640).

Almost surely, 2104143420 is an apocalyptic number.

104143420 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 104143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113319360).

104143420 is an abundant number, since it is smaller than the sum of its proper divisors (122495300).

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

104143420 is a wasteful number, since it uses less digits than its factorization.

104143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 104143420 is about 10205.0683486197. The cubic root of 104143420 is about 470.4830103150.

Adding to 104143420 its reverse (24341401), we get a palindrome (128484821).

The spelling of 104143420 in words is "one hundred four million, one hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 43 83 86 166 172 215 332 415 430 830 860 1459 1660 2918 3569 5836 7138 7295 14276 14590 17845 29180 35690 62737 71380 121097 125474 242194 250948 313685 484388 605485 627370 1210970 1254740 2421940 5207171 10414342 20828684 26035855 52071710 104143420