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30440201 = 1123791523
BaseRepresentation
bin111010000011…
…1101100001001
32010021112002212
41310013230021
530243041301
63004234505
7516510641
oct164075411
963245085
1030440201
11162011a0
12a23ba35
1363ca46c
144085521
152a144bb
hex1d07b09

30440201 has 16 divisors (see below), whose sum is σ = 35112960. Its totient is φ = 26117520.

The previous prime is 30440191. The next prime is 30440209. The reversal of 30440201 is 10204403.

It is a de Polignac number, because none of the positive numbers 2k-30440201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30440209) 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, 19226 + ... + 20748.

It is an arithmetic number, because the mean of its divisors is an integer number (2194560).

Almost surely, 230440201 is an apocalyptic number.

It is an amenable number.

30440201 is a deficient number, since it is larger than the sum of its proper divisors (4672759).

30440201 is a wasteful number, since it uses less digits than its factorization.

30440201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30440201 is about 5517.2639052342. The cubic root of 30440201 is about 312.2356625453.

Adding to 30440201 its reverse (10204403), we get a palindrome (40644604).

The spelling of 30440201 in words is "thirty million, four hundred forty thousand, two hundred one".

Divisors: 1 11 23 79 253 869 1523 1817 16753 19987 35029 120317 385319 1323487 2767291 30440201