Search a number
-
+
1072630838 = 2536315419
BaseRepresentation
bin111111111011110…
…000110000110110
32202202100021220002
4333323300300312
54144043141323
6254234111302
735403132416
oct7773606066
92682307802
101072630838
11500521474
1225b27b532
131412ba306
14a2656646
156427b828
hex3fef0c36

1072630838 has 4 divisors (see below), whose sum is σ = 1608946260. Its totient is φ = 536315418.

The previous prime is 1072630831. The next prime is 1072630841. The reversal of 1072630838 is 8380362701.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8380362701 = 22513722951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072630831) 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 as a sum of consecutive naturals, namely, 268157708 + ... + 268157711.

It is an arithmetic number, because the mean of its divisors is an integer number (402236565).

Almost surely, 21072630838 is an apocalyptic number.

1072630838 is a deficient number, since it is larger than the sum of its proper divisors (536315422).

1072630838 is an equidigital number, since it uses as much as digits as its factorization.

1072630838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536315421.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1072630838 is about 32751.0433116260. The cubic root of 1072630838 is about 1023.6467051842.

The spelling of 1072630838 in words is "one billion, seventy-two million, six hundred thirty thousand, eight hundred thirty-eight".

Divisors: 1 2 536315419 1072630838