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42151524 = 2234381689
BaseRepresentation
bin1010000011001…
…0111001100100
32221022112000120
42200302321210
541242322044
64103241540
71021165512
oct240627144
987275016
1042151524
1121880078
12121492b0
13896ac3c
1458534b2
153a79519
hex2832e64

42151524 has 24 divisors (see below), whose sum is σ = 100642080. Its totient is φ = 13723584.

The previous prime is 42151523. The next prime is 42151553. The reversal of 42151524 is 42515124.

It is a junction number, because it is equal to n+sod(n) for n = 42151494 and 42151503.

It is not an unprimeable number, because it can be changed into a prime (42151523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40329 + ... + 41360.

It is an arithmetic number, because the mean of its divisors is an integer number (4193420).

Almost surely, 242151524 is an apocalyptic number.

It is an amenable number.

42151524 is an abundant number, since it is smaller than the sum of its proper divisors (58490556).

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

42151524 is a wasteful number, since it uses less digits than its factorization.

42151524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81739 (or 81737 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 42151524 is about 6492.4205039415. The cubic root of 42151524 is about 348.0201798312.

Adding to 42151524 its reverse (42515124), we get a palindrome (84666648).

It can be divided in two parts, 4215152 and 4, that added together give a triangular number (4215156 = T2903).

The spelling of 42151524 in words is "forty-two million, one hundred fifty-one thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 81689 163378 245067 326756 490134 980268 3512627 7025254 10537881 14050508 21075762 42151524