| Base | Representation |
|---|---|
| bin | 10010111000100… |
| … | …01100010111000 |
| 3 | 102001001220100000 |
| 4 | 21130101202320 |
| 5 | 311023004330 |
| 6 | 23415113000 |
| 7 | 3632302344 |
| oct | 1134214270 |
| 9 | 361056300 |
| 10 | 158406840 |
| 11 | 81464449 |
| 12 | 45072760 |
| 13 | 26a83577 |
| 14 | 17076624 |
| 15 | dd90560 |
| hex | 97118b8 |
158406840 has 192 divisors, whose sum is σ = 547747200. Its totient is φ = 41150592.
The previous prime is 158406839. The next prime is 158406841. The reversal of 158406840 is 48604851.
It is an interprime number because it is at equal distance from previous prime (158406839) and next prime (158406841).
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 158406795 and 158406804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (158406841) 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, 417771 + ... + 418149.
It is an arithmetic number, because the mean of its divisors is an integer number (2852850).
Almost surely, 2158406840 is an apocalyptic number.
158406840 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 158406840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273873600).
158406840 is an abundant number, since it is smaller than the sum of its proper divisors (389340360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
158406840 is a wasteful number, since it uses less digits than its factorization.
158406840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 448 (or 432 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 158406840 is about 12585.9779119463. The cubic root of 158406840 is about 541.0756337847.
The spelling of 158406840 in words is "one hundred fifty-eight million, four hundred six thousand, eight hundred forty".
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