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146123430 = 23540911909
BaseRepresentation
bin10001011010110…
…10101010100110
3101011221211122220
420231122222212
5244401422210
622255533210
73423012555
oct1055325246
9334854586
10146123430
1175534772
1240b2a206
132437258b
1415599d9c
15cc65c70
hex8b5aaa6

146123430 has 32 divisors (see below), whose sum is σ = 351583200. Its totient is φ = 38867712.

The previous prime is 146123413. The next prime is 146123437. The reversal of 146123430 is 34321641.

146123430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 146123430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146123437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6316 + ... + 18224.

It is an arithmetic number, because the mean of its divisors is an integer number (10986975).

Almost surely, 2146123430 is an apocalyptic number.

146123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146123430 is an abundant number, since it is smaller than the sum of its proper divisors (205459770).

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

146123430 is a wasteful number, since it uses less digits than its factorization.

146123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12328.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 146123430 is about 12088.1524642933. The cubic root of 146123430 is about 526.7120886069.

The spelling of 146123430 in words is "one hundred forty-six million, one hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 409 818 1227 2045 2454 4090 6135 11909 12270 23818 35727 59545 71454 119090 178635 357270 4870781 9741562 14612343 24353905 29224686 48707810 73061715 146123430