Base | Representation |
---|---|
bin | 101100011010101… |
… | …011110111101010 |
3 | 1220221012201112110 |
4 | 230122223313222 |
5 | 3011232133223 |
6 | 201540023150 |
7 | 24316015110 |
oct | 5432536752 |
9 | 1827181473 |
10 | 745192938 |
11 | 352707536 |
12 | 189691ab6 |
13 | bb503789 |
14 | 70d7dab0 |
15 | 4564cd93 |
hex | 2c6abdea |
745192938 has 32 divisors (see below), whose sum is σ = 1724866560. Its totient is φ = 210216240.
The previous prime is 745192937. The next prime is 745192957. The reversal of 745192938 is 839291547.
It is a super-3 number, since 3×7451929383 (a number of 28 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (745192933) 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, 108978 + ... + 115613.
It is an arithmetic number, because the mean of its divisors is an integer number (53902080).
Almost surely, 2745192938 is an apocalyptic number.
745192938 is an abundant number, since it is smaller than the sum of its proper divisors (979673622).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
745192938 is a wasteful number, since it uses less digits than its factorization.
745192938 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 224682.
The product of its digits is 544320, while the sum is 48.
The square root of 745192938 is about 27298.2222498096. Note that the first 4 decimals coincide. The cubic root of 745192938 is about 906.6150208171.
The spelling of 745192938 in words is "seven hundred forty-five million, one hundred ninety-two thousand, nine hundred thirty-eight".
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