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156006434 = 2181430957
BaseRepresentation
bin10010100110001…
…11100000100010
3101212112221121002
421103013200202
5304414201214
623251432002
73603014153
oct1123074042
9355487532
10156006434
1180074a41
12442b5602
1326422acc
1416a0d92a
15da691de
hex94c7822

156006434 has 8 divisors (see below), whose sum is σ = 235303068. Its totient is φ = 77572080.

The previous prime is 156006413. The next prime is 156006439. The reversal of 156006434 is 434600651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109725625 + 46280809 = 10475^2 + 6803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 156006397 and 156006406.

It is not an unprimeable number, because it can be changed into a prime (156006439) 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 3 ways as a sum of consecutive naturals, for example, 215117 + ... + 215840.

Almost surely, 2156006434 is an apocalyptic number.

156006434 is a deficient number, since it is larger than the sum of its proper divisors (79296634).

156006434 is a wasteful number, since it uses less digits than its factorization.

156006434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431140.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 156006434 is about 12490.2535602765. The cubic root of 156006434 is about 538.3286618741.

The spelling of 156006434 in words is "one hundred fifty-six million, six thousand, four hundred thirty-four".

Divisors: 1 2 181 362 430957 861914 78003217 156006434