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1491630792005 = 517162231081711
BaseRepresentation
bin10101101101001100000…
…111111001110101000101
312021121011022111022200002
4111231030013321311011
5143414324440321010
63101125024331045
7212524000351154
oct25551407716505
95247138438602
101491630792005
11525662771572
12201108173a85
13aa877553523
14522a3d3559b
1528c0276e1a5
hex15b4c1f9d45

1491630792005 has 16 divisors (see below), whose sum is σ = 1895367112704. Its totient is φ = 1123039975680.

The previous prime is 1491630791969. The next prime is 1491630792017. The reversal of 1491630792005 is 5002970361941.

It is not a de Polignac number, because 1491630792005 - 222 = 1491626597701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838100 + ... + 1919810.

It is an arithmetic number, because the mean of its divisors is an integer number (118460444544).

Almost surely, 21491630792005 is an apocalyptic number.

It is an amenable number.

1491630792005 is a deficient number, since it is larger than the sum of its proper divisors (403736320699).

1491630792005 is a wasteful number, since it uses less digits than its factorization.

1491630792005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097956.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 1491630792005 in words is "one trillion, four hundred ninety-one billion, six hundred thirty million, seven hundred ninety-two thousand, five".

Divisors: 1 5 17 85 16223 81115 275791 1081711 1378955 5408555 18389087 91945435 17548597553 87742987765 298326158401 1491630792005