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1348479990 = 23251113293613
BaseRepresentation
bin101000001100000…
…0010101111110110
310110222101212210100
41100120002233312
510230202324430
6341450334530
745262614354
oct12030025766
93428355710
101348479990
116321aaa80
1231772a446
131864b0570
14cb1407d4
157d5b9960
hex50602bf6

1348479990 has 192 divisors, whose sum is σ = 4262207040. Its totient is φ = 291271680.

The previous prime is 1348479983. The next prime is 1348479991. The reversal of 1348479990 is 999748431.

1348479990 is a `hidden beast` number, since 1 + 3 + 484 + 79 + 9 + 90 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348479991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 371424 + ... + 375036.

It is an arithmetic number, because the mean of its divisors is an integer number (22198995).

Almost surely, 21348479990 is an apocalyptic number.

1348479990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1348479990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131103520).

1348479990 is an abundant number, since it is smaller than the sum of its proper divisors (2913727050).

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

1348479990 is a wasteful number, since it uses less digits than its factorization.

1348479990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1348479990 is about 36721.6555999318. The cubic root of 1348479990 is about 1104.7944964301.

The spelling of 1348479990 in words is "one billion, three hundred forty-eight million, four hundred seventy-nine thousand, nine hundred ninety".