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1947468948 = 223162289079
BaseRepresentation
bin111010000010100…
…0000010010010100
312000201111200011120
41310011000102110
512442023001243
6521125003540
766155133015
oct16405002224
95021450146
101947468948
1190a328277
124642535b0
13250613bb9
1414690300c
15b5e87c83
hex74140494

1947468948 has 12 divisors (see below), whose sum is σ = 4544094240. Its totient is φ = 649156312.

The previous prime is 1947468911. The next prime is 1947468953. The reversal of 1947468948 is 8498647491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1947468891 and 1947468900.

It is a congruent number.

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, 81144528 + ... + 81144551.

It is an arithmetic number, because the mean of its divisors is an integer number (378674520).

Almost surely, 21947468948 is an apocalyptic number.

It is an amenable number.

1947468948 is an abundant number, since it is smaller than the sum of its proper divisors (2596625292).

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

1947468948 is a wasteful number, since it uses less digits than its factorization.

1947468948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162289086 (or 162289084 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 60.

The square root of 1947468948 is about 44130.1365055673. The cubic root of 1947468948 is about 1248.7922089418.

The spelling of 1947468948 in words is "one billion, nine hundred forty-seven million, four hundred sixty-eight thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 162289079 324578158 486867237 649156316 973734474 1947468948