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350729172 = 223216975741
BaseRepresentation
bin10100111001111…
…011001111010100
3220102221212222100
4110321323033110
51204241313142
654445202100
711456102013
oct2471731724
9812855870
10350729172
1116aa83022
1299560330
1357880071
143481aa7a
1520bceb4c
hex14e7b3d4

350729172 has 36 divisors (see below), whose sum is σ = 887242356. Its totient is φ = 116820480.

The previous prime is 350729167. The next prime is 350729207. The reversal of 350729172 is 271927053.

It can be written as a sum of positive squares in 2 ways, for example, as 273042576 + 77686596 = 16524^2 + 8814^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 58222 + ... + 63962.

It is an arithmetic number, because the mean of its divisors is an integer number (24645621).

Almost surely, 2350729172 is an apocalyptic number.

It is an amenable number.

350729172 is an abundant number, since it is smaller than the sum of its proper divisors (536513184).

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

350729172 is a wasteful number, since it uses less digits than its factorization.

350729172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448 (or 7443 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 350729172 is about 18727.7647358140. The cubic root of 350729172 is about 705.2189330610.

It can be divided in two parts, 35072 and 9172, that added together give a palindrome (44244).

The spelling of 350729172 in words is "three hundred fifty million, seven hundred twenty-nine thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 1697 3394 5091 5741 6788 10182 11482 15273 17223 20364 22964 30546 34446 51669 61092 68892 103338 206676 9742477 19484954 29227431 38969908 58454862 87682293 116909724 175364586 350729172