Search a number
-
+
1206644130 = 232513407157
BaseRepresentation
bin100011111101011…
…1110110110100010
310010002111212120100
41013322332312202
54432400103010
6315422323230
741621206626
oct10772766642
93102455510
101206644130
1156a13465a
12298129516
13162cac713
14b637d186
1570dee2c0
hex47ebeda2

1206644130 has 24 divisors (see below), whose sum is σ = 3137274972. Its totient is φ = 321771744.

The previous prime is 1206644099. The next prime is 1206644137. The reversal of 1206644130 is 314466021.

1206644130 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 644 + 13 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1153892961 + 52751169 = 33969^2 + 7263^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1206644094 and 1206644103.

It is not an unprimeable number, because it can be changed into a prime (1206644137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6703489 + ... + 6703668.

Almost surely, 21206644130 is an apocalyptic number.

1206644130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1206644130 is an abundant number, since it is smaller than the sum of its proper divisors (1930630842).

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

1206644130 is a wasteful number, since it uses less digits than its factorization.

1206644130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13407170 (or 13407167 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1206644130 is about 34736.7835298549. The cubic root of 1206644130 is about 1064.6161944387.

The spelling of 1206644130 in words is "one billion, two hundred six million, six hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 13407157 26814314 40221471 67035785 80442942 120664413 134071570 201107355 241328826 402214710 603322065 1206644130