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158077420 = 22579100049
BaseRepresentation
bin10010110110000…
…01000111101100
3102000110011110021
421123001013230
5310431434140
623404051524
73626431054
oct1133010754
9360404407
10158077420
11812599a6
1244b33ba4
1326999647
1416dcc564
15dd27b4a
hex96c11ec

158077420 has 24 divisors (see below), whose sum is σ = 336168000. Its totient is φ = 62429952.

The previous prime is 158077411. The next prime is 158077433. The reversal of 158077420 is 24770851.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 48445 + ... + 51604.

It is an arithmetic number, because the mean of its divisors is an integer number (14007000).

Almost surely, 2158077420 is an apocalyptic number.

158077420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158077420 is an abundant number, since it is smaller than the sum of its proper divisors (178090580).

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

158077420 is a wasteful number, since it uses less digits than its factorization.

158077420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100137 (or 100135 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 158077420 is about 12572.8843150647. The cubic root of 158077420 is about 540.7003031195.

It can be divided in two parts, 1580 and 77420, that multiplied together give a square (122323600 = 110602).

The spelling of 158077420 in words is "one hundred fifty-eight million, seventy-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 100049 200098 400196 500245 1000490 2000980 7903871 15807742 31615484 39519355 79038710 158077420