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31146001 = 167421443
BaseRepresentation
bin111011011010…
…0000000010001
32011121101021121
41312310000101
530433133001
63031322241
7525510445
oct166640021
964541247
1031146001
11166434a7
12a520381
1365b67b3
1441ca825
152b036a1
hex1db4011

31146001 has 8 divisors (see below), whose sum is σ = 31477824. Its totient is φ = 30816240.

The previous prime is 31145977. The next prime is 31146013. The reversal of 31146001 is 10064113.

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

It is a cyclic number.

It is not a de Polignac number, because 31146001 - 29 = 31145489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31146701) 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, 70086 + ... + 70528.

It is an arithmetic number, because the mean of its divisors is an integer number (3934728).

Almost surely, 231146001 is an apocalyptic number.

It is an amenable number.

31146001 is a deficient number, since it is larger than the sum of its proper divisors (331823).

31146001 is a wasteful number, since it uses less digits than its factorization.

31146001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 31146001 is about 5580.8602383504. The cubic root of 31146001 is about 314.6304593971.

The spelling of 31146001 in words is "thirty-one million, one hundred forty-six thousand, one".

Divisors: 1 167 421 443 70307 73981 186503 31146001