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200401211240 = 2355010030281
BaseRepresentation
bin1011101010100011010…
…1111100111101101000
3201011021022020022211222
42322220311330331220
511240410202224430
6232021341241212
720323062122036
oct2725065747550
9634238208758
10200401211240
1177a9829413a
1232a09b63208
1315b89495b89
1499b14bd556
15532d7c69e5
hex2ea8d7cf68

200401211240 has 16 divisors (see below), whose sum is σ = 450902725380. Its totient is φ = 80160484480.

The previous prime is 200401211233. The next prime is 200401211279. The reversal of 200401211240 is 42112104002.

It can be written as a sum of positive squares in 2 ways, for example, as 192951104644 + 7450106596 = 439262^2 + 86314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505015101 + ... + 2505015180.

Almost surely, 2200401211240 is an apocalyptic number.

200401211240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200401211240 is an abundant number, since it is smaller than the sum of its proper divisors (250501514140).

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

200401211240 is a wasteful number, since it uses less digits than its factorization.

200401211240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010030292 (or 5010030288 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200401211240 its reverse (42112104002), we get a palindrome (242513315242).

The spelling of 200401211240 in words is "two hundred billion, four hundred one million, two hundred eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5010030281 10020060562 20040121124 25050151405 40080242248 50100302810 100200605620 200401211240