Search a number
-
+
172016317507 is a prime number
BaseRepresentation
bin1010000000110011111…
…0001011010001000011
3121110000010001022202111
42200030332023101003
510304242134130012
6211005002400151
715266503400566
oct2401476132103
9543003038674
10172016317507
1166a517aa381
1229407b00057
13132b48c5678
14847b77c4dd
15471b882ba7
hex280cf8b443

172016317507 has 2 divisors, whose sum is σ = 172016317508. Its totient is φ = 172016317506.

The previous prime is 172016317469. The next prime is 172016317513. The reversal of 172016317507 is 705713610271.

It is a strong prime.

It is an emirp because it is prime and its reverse (705713610271) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-172016317507 is a prime.

It is a super-2 number, since 2×1720163175072 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172016317507.

It is not a weakly prime, because it can be changed into another prime (172016317537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86008158753 + 86008158754.

It is an arithmetic number, because the mean of its divisors is an integer number (86008158754).

Almost surely, 2172016317507 is an apocalyptic number.

172016317507 is a deficient number, since it is larger than the sum of its proper divisors (1).

172016317507 is an equidigital number, since it uses as much as digits as its factorization.

172016317507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 40.

Adding to 172016317507 its reverse (705713610271), we get a palindrome (877729927778).

The spelling of 172016317507 in words is "one hundred seventy-two billion, sixteen million, three hundred seventeen thousand, five hundred seven".