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1993923092 = 227210173077
BaseRepresentation
bin111011011011000…
…1101101000010100
312010221220210021102
41312312031220110
513040421014332
6525504405232
7100261031600
oct16666155024
95127823242
101993923092
11933576a27
12477916818
1325a12a365
1414cb56500
15ba0b2062
hex76d8da14

1993923092 has 18 divisors (see below), whose sum is σ = 4059058122. Its totient is φ = 854538384.

The previous prime is 1993923083. The next prime is 1993923103. The reversal of 1993923092 is 2903293991.

It can be written as a sum of positive squares in only one way, i.e., 1380568336 + 613354756 = 37156^2 + 24766^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5086343 + ... + 5086734.

It is an arithmetic number, because the mean of its divisors is an integer number (225503229).

Almost surely, 21993923092 is an apocalyptic number.

It is an amenable number.

1993923092 is an abundant number, since it is smaller than the sum of its proper divisors (2065135030).

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

1993923092 is a wasteful number, since it uses less digits than its factorization.

1993923092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173095 (or 10173086 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 1993923092 is about 44653.3659649527. The cubic root of 1993923092 is about 1258.6436845635.

The spelling of 1993923092 in words is "one billion, nine hundred ninety-three million, nine hundred twenty-three thousand, ninety-two".

Divisors: 1 2 4 7 14 28 49 98 196 10173077 20346154 40692308 71211539 142423078 284846156 498480773 996961546 1993923092