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30140350400 = 265218837719
BaseRepresentation
bin11100000100100000…
…010011111111000000
32212210112101102221002
4130010200103333000
5443211412203100
621502444151132
72114622515456
oct340440237700
985715342832
1030140350400
11118674953a6
125a11b384a8
132ac4495a84
14165cd409d6
15bb60ee2d5
hex704813fc0

30140350400 has 42 divisors (see below), whose sum is σ = 74164103640. Its totient is φ = 12056139520.

The previous prime is 30140350399. The next prime is 30140350403. The reversal of 30140350400 is 405304103.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140350403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9417260 + ... + 9420459.

Almost surely, 230140350400 is an apocalyptic number.

It is an amenable number.

30140350400 is an abundant number, since it is smaller than the sum of its proper divisors (44023753240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30140350400 is a wasteful number, since it uses less digits than its factorization.

30140350400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837741 (or 18837726 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 30140350400 its reverse (405304103), we get a palindrome (30545654503).

The spelling of 30140350400 in words is "thirty billion, one hundred forty million, three hundred fifty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 18837719 37675438 75350876 94188595 150701752 188377190 301403504 376754380 470942975 602807008 753508760 941885950 1205614016 1507017520 1883771900 3014035040 3767543800 6028070080 7535087600 15070175200 30140350400