Search a number
-
+
153744442907 = 117310121372
BaseRepresentation
bin1000111100101111100…
…0100000011000011011
3112200211201021220220012
42033023320200120123
510004332034133112
6154343524552135
714051634126266
oct2171370403033
9480751256805
10153744442907
115a225803570
122596885264b
1311662263c53
147626bbdcdd
153eec6c4022
hex23cbe2061b

153744442907 has 36 divisors (see below), whose sum is σ = 172981353048. Its totient is φ = 135491904000.

The previous prime is 153744442897. The next prime is 153744442913. The reversal of 153744442907 is 709244447351.

It is not a de Polignac number, because 153744442907 - 26 = 153744442843 is a prime.

It is a super-2 number, since 2×1537444429072 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153744442987) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1122222143 + ... + 1122222279.

Almost surely, 2153744442907 is an apocalyptic number.

153744442907 is a deficient number, since it is larger than the sum of its proper divisors (19236910141).

153744442907 is an equidigital number, since it uses as much as digits as its factorization.

153744442907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

It can be divided in two parts, 15374444 and 2907, that added together give a palindrome (15377351).

The spelling of 153744442907 in words is "one hundred fifty-three billion, seven hundred forty-four million, four hundred forty-two thousand, nine hundred seven".

Divisors: 1 11 73 101 137 803 1111 1507 7373 10001 10201 13837 18769 81103 110011 112211 152207 206459 744673 1010101 1370137 1397537 1895669 8191403 11111111 15071507 15372907 20852359 102020201 138383837 191462569 1122222211 1522222207 2106088259 13976767537 153744442907