Search a number
-
+
158868000361 = 7229241523887
BaseRepresentation
bin1001001111110101000…
…1010100111001101001
3120012001210011121102101
42103331101110321221
510100330202002421
6200552152333401
714322616502500
oct2237521247151
9505053147371
10158868000361
1161414932074
12269586a4261
1311c9a893a55
147991445837
1541ec3d5191
hex24fd454e69

158868000361 has 48 divisors (see below), whose sum is σ = 192555411840. Its totient is φ = 130533742080.

The previous prime is 158868000359. The next prime is 158868000371. The reversal of 158868000361 is 163000868851.

It is not a de Polignac number, because 158868000361 - 21 = 158868000359 is a prime.

It is a super-2 number, since 2×1588680003612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158868000331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179106660 + ... + 179107546.

It is an arithmetic number, because the mean of its divisors is an integer number (4011571080).

Almost surely, 2158868000361 is an apocalyptic number.

158868000361 is the 252086-th heptagonal number.

It is an amenable number.

158868000361 is a deficient number, since it is larger than the sum of its proper divisors (33687411479).

158868000361 is a wasteful number, since it uses less digits than its factorization.

158868000361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 158868000361 in words is "one hundred fifty-eight billion, eight hundred sixty-eight million, three hundred sixty-one", and thus it is an aban number.

Divisors: 1 7 29 49 203 241 523 887 1421 1687 3661 6209 6989 11809 15167 25627 25723 43463 48923 106169 126043 180061 213767 342461 463901 743183 882301 1260427 1496369 3247307 3655247 6176107 6199243 10474583 13453129 22731149 25586729 43394701 94171903 111800141 179107103 303762907 659203321 782600987 3242204089 5478206909 22695428623 158868000361