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146942471 = 138921427
BaseRepresentation
bin10001100001000…
…10101000000111
3101020111110011202
420300202220013
5300104124341
622325253115
73432663464
oct1060425007
9336443152
10146942471
1175a44065
124126419b
132459b310
141573066b
15cd7879b
hex8c22a07

146942471 has 12 divisors (see below), whose sum is σ = 160155912. Its totient is φ = 134021184.

The previous prime is 146942461. The next prime is 146942489. The reversal of 146942471 is 174249641.

It is a de Polignac number, because none of the positive numbers 2k-146942471 is a prime.

It is a super-3 number, since 3×1469424713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146942461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102260 + ... + 103686.

It is an arithmetic number, because the mean of its divisors is an integer number (13346326).

Almost surely, 2146942471 is an apocalyptic number.

146942471 is a deficient number, since it is larger than the sum of its proper divisors (13213441).

146942471 is an equidigital number, since it uses as much as digits as its factorization.

146942471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1529 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 146942471 is about 12121.9829648453. The cubic root of 146942471 is about 527.6943524384.

The spelling of 146942471 in words is "one hundred forty-six million, nine hundred forty-two thousand, four hundred seventy-one".

Divisors: 1 13 89 1157 1427 7921 18551 102973 127003 1651039 11303267 146942471