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400083047380 = 22520004152369
BaseRepresentation
bin1011101001001101100…
…11101101001111010100
31102020200110211121120201
411310212303231033110
523023332230004010
6503443504110244
740622300535442
oct5644663551724
91366613747521
10400083047380
111447464a50a5
1265657005384
132b95c8c77c3
141551521db92
15a618d5023a
hex5d26ced3d4

400083047380 has 12 divisors (see below), whose sum is σ = 840174399540. Its totient is φ = 160033218944.

The previous prime is 400083047279. The next prime is 400083047381. The reversal of 400083047380 is 83740380004.

It can be written as a sum of positive squares in 2 ways, for example, as 120878600976 + 279204446404 = 347676^2 + 528398^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400083047381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10002076165 + ... + 10002076204.

It is an arithmetic number, because the mean of its divisors is an integer number (70014533295).

Almost surely, 2400083047380 is an apocalyptic number.

It is an amenable number.

400083047380 is an abundant number, since it is smaller than the sum of its proper divisors (440091352160).

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

400083047380 is a wasteful number, since it uses less digits than its factorization.

400083047380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20004152378 (or 20004152376 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 400083047380 in words is "four hundred billion, eighty-three million, forty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 20004152369 40008304738 80016609476 100020761845 200041523690 400083047380