Search a number
-
+
148305581018 = 27471124320047
BaseRepresentation
bin1000101000011110110…
…0111001001111011010
3112011210200010002222222
42022013230321033122
54412212212043033
6152044115144042
713500102432140
oct2120754711732
9464720102888
10148305581018
11579946a8091
12248ab2a5022
1310ca650828a
14726c71d590
153ccee7e598
hex2287b393da

148305581018 has 32 divisors (see below), whose sum is σ = 259683508224. Its totient is φ = 62198568432.

The previous prime is 148305581003. The next prime is 148305581023. The reversal of 148305581018 is 810185503841.

It is a super-2 number, since 2×1483055810182 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 148305581018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7387871 + ... + 7407917.

It is an arithmetic number, because the mean of its divisors is an integer number (8115109632).

Almost surely, 2148305581018 is an apocalyptic number.

148305581018 is a deficient number, since it is larger than the sum of its proper divisors (111377927206).

148305581018 is a wasteful number, since it uses less digits than its factorization.

148305581018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31346.

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 148305581018 in words is "one hundred forty-eight billion, three hundred five million, five hundred eighty-one thousand, eighteen".

Divisors: 1 2 7 14 47 94 329 658 11243 20047 22486 40094 78701 140329 157402 280658 528421 942209 1056842 1884418 3698947 6595463 7397894 13190926 225388421 450776842 1577718947 3155437894 10593255787 21186511574 74152790509 148305581018