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145371401 = 735358831
BaseRepresentation
bin10001010101000…
…11000100001001
3101010112122001222
420222203010021
5244203341101
622231451425
73413431220
oct1052430411
9333478058
10145371401
117507075a
1240826b75
132416b1a6
1415441cb7
15cb6801b
hex8aa3109

145371401 has 8 divisors (see below), whose sum is σ = 166612224. Its totient is φ = 124248960.

The previous prime is 145371379. The next prime is 145371407. The reversal of 145371401 is 104173541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145371401 is a prime.

It is a super-3 number, since 3×1453714013 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145371407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26945 + ... + 31886.

It is an arithmetic number, because the mean of its divisors is an integer number (20826528).

Almost surely, 2145371401 is an apocalyptic number.

It is an amenable number.

145371401 is a deficient number, since it is larger than the sum of its proper divisors (21240823).

145371401 is an equidigital number, since it uses as much as digits as its factorization.

145371401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59191.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 145371401 is about 12057.0063033906. The cubic root of 145371401 is about 525.8069537414.

The spelling of 145371401 in words is "one hundred forty-five million, three hundred seventy-one thousand, four hundred one".

Divisors: 1 7 353 2471 58831 411817 20767343 145371401