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202945561430 = 251071017718637
BaseRepresentation
bin1011110100000001111…
…1111000001101010110
3201101211121212201011012
42331000133320031112
511311113030431210
6233122031412222
720443115544443
oct2750037701526
9641747781135
10202945561430
117908352a097
12333ba084072
13161a3652c31
149b733969ca
15542bd63305
hex2f407f8356

202945561430 has 32 divisors (see below), whose sum is σ = 368772064416. Its totient is φ = 80407332864.

The previous prime is 202945561393. The next prime is 202945561433. The reversal of 202945561430 is 34165549202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202945561433) 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, 10880072 + ... + 10898708.

It is an arithmetic number, because the mean of its divisors is an integer number (11524127013).

Almost surely, 2202945561430 is an apocalyptic number.

202945561430 is a deficient number, since it is larger than the sum of its proper divisors (165826502986).

202945561430 is a wasteful number, since it uses less digits than its factorization.

202945561430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28928.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 202945561430 in words is "two hundred two billion, nine hundred forty-five million, five hundred sixty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 107 214 535 1070 10177 18637 20354 37274 50885 93185 101770 186370 1088939 1994159 2177878 3988318 5444695 9970795 10889390 19941590 189668749 379337498 948343745 1896687490 20294556143 40589112286 101472780715 202945561430