| Base | Representation |
|---|---|
| bin | 111010110010100010… |
| … | …1000111100000000000 |
| 3 | 110001212120110000100000 |
| 4 | 1311211011013200000 |
| 5 | 4032024433014330 |
| 6 | 133555353200000 |
| 7 | 12056406242262 |
| oct | 1654505074000 |
| 9 | 401776400300 |
| 10 | 126249891840 |
| 11 | 495a6855396 |
| 12 | 20574a00000 |
| 13 | bb9cc88517 |
| 14 | 6179403b32 |
| 15 | 343da00560 |
| hex | 1d65147800 |
126249891840 has 576 divisors, whose sum is σ = 458800524000. Its totient is φ = 33294385152.
The previous prime is 126249891839. The next prime is 126249891841. The reversal of 126249891840 is 48198942621.
It is a happy number.
126249891840 is a `hidden beast` number, since 1 + 2 + 62 + 498 + 91 + 8 + 4 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (126249891839) and next prime (126249891841).
It is a tau number, because it is divible by the number of its divisors (576).
It is a super-2 number, since 2×1262498918402 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126249891841) 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, 281179936 + ... + 281180384.
Almost surely, 2126249891840 is an apocalyptic number.
126249891840 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 126249891840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229400262000).
126249891840 is an abundant number, since it is smaller than the sum of its proper divisors (332550632160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
126249891840 is an equidigital number, since it uses as much as digits as its factorization.
126249891840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 604 (or 572 counting only the distinct ones).
The product of its (nonzero) digits is 1990656, while the sum is 54.
The spelling of 126249891840 in words is "one hundred twenty-six billion, two hundred forty-nine million, eight hundred ninety-one thousand, eight hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •