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158828980 = 22519478893
BaseRepresentation
bin10010111011110…
…00100110110100
3102001212100101211
421131320212310
5311130011410
623432131204
73636011152
oct1135704664
9361770354
10158828980
1181722622
1245236b04
1326ba075b
14171463d2
15de2568a
hex97789b4

158828980 has 48 divisors (see below), whose sum is σ = 358606080. Its totient is φ = 58900608.

The previous prime is 158828921. The next prime is 158828983. The reversal of 158828980 is 89828851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158828983) 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, 13414 + ... + 22306.

It is an arithmetic number, because the mean of its divisors is an integer number (7470960).

Almost surely, 2158828980 is an apocalyptic number.

158828980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158828980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179303040).

158828980 is an abundant number, since it is smaller than the sum of its proper divisors (199777100).

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

158828980 is a wasteful number, since it uses less digits than its factorization.

158828980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8968 (or 8966 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 49.

The square root of 158828980 is about 12602.7370043178. The cubic root of 158828980 is about 541.5558467832. Note that the first 3 decimals are identical.

The spelling of 158828980 in words is "one hundred fifty-eight million, eight hundred twenty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 47 76 94 95 188 190 235 380 470 893 940 1786 3572 4465 8893 8930 17786 17860 35572 44465 88930 168967 177860 337934 417971 675868 835942 844835 1671884 1689670 2089855 3379340 4179710 7941449 8359420 15882898 31765796 39707245 79414490 158828980