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1031297425490 = 25744411385389
BaseRepresentation
bin11110000000111100001…
…11011110000001010010
310122120221220001101001002
433000132013132001102
5113344044120103430
62105434350542002
7134336340323333
oct17003607360122
93576856041032
101031297425490
113684095689a2
12147a57507902
13763353a6b17
1437cb4d0228a
151bc5e222845
hexf01e1de052

1031297425490 has 16 divisors (see below), whose sum is σ = 1856361642840. Its totient is φ = 412513130880.

The previous prime is 1031297425471. The next prime is 1031297425507. The reversal of 1031297425490 is 945247921301.

It can be written as a sum of positive squares in 4 ways, for example, as 750044334601 + 281253090889 = 866051^2 + 530333^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51716 + ... + 1437104.

Almost surely, 21031297425490 is an apocalyptic number.

1031297425490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031297425490 is a deficient number, since it is larger than the sum of its proper divisors (825064217350).

1031297425490 is a wasteful number, since it uses less digits than its factorization.

1031297425490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459837.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 1031297425490 in words is "one trillion, thirty-one billion, two hundred ninety-seven million, four hundred twenty-five thousand, four hundred ninety".

Divisors: 1 2 5 10 74441 148882 372205 744410 1385389 2770778 6926945 13853890 103129742549 206259485098 515648712745 1031297425490