Search a number
-
+
1390015200 = 2535271731157
BaseRepresentation
bin101001011011001…
…1111001011100000
310120212120002101110
41102312133023200
510321320441300
6345532503320
746305635310
oct12266371340
93525502343
101390015200
11653699aa2
1232961ab40
13191c93b02
14d2873440
1582071550
hex52d9f2e0

1390015200 has 576 divisors, whose sum is σ = 5687635968. Its totient is φ = 287539200.

The previous prime is 1390015181. The next prime is 1390015213. The reversal of 1390015200 is 25100931.

1390015200 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8853522 + ... + 8853678.

It is an arithmetic number, because the mean of its divisors is an integer number (9874368).

Almost surely, 21390015200 is an apocalyptic number.

1390015200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390015200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2843817984).

1390015200 is an abundant number, since it is smaller than the sum of its proper divisors (4297620768).

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

1390015200 is a wasteful number, since it uses less digits than its factorization.

1390015200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1390015200 is about 37282.9076119339. The cubic root of 1390015200 is about 1116.0230978891.

The spelling of 1390015200 in words is "one billion, three hundred ninety million, fifteen thousand, two hundred".