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100050010505 = 5169311819257
BaseRepresentation
bin101110100101101110…
…0100000000110001001
3100120020122202010202122
41131023130200012021
53114400300314010
6113543510541025
710141222025504
oct1351334400611
9316218663678
10100050010505
11394816937a5
1217482667775
139585c9c863
144bb195c13b
152908817855
hex174b720189

100050010505 has 8 divisors (see below), whose sum is σ = 120130938312. Its totient is φ = 79992724608.

The previous prime is 100050010493. The next prime is 100050010507. The reversal of 100050010505 is 505010050001.

It can be written as a sum of positive squares in 4 ways, for example, as 28624240969 + 71425769536 = 169187^2 + 267256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100050010505 - 222 = 100045816201 is a prime.

It is a super-2 number, since 2×1000500105052 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100050010507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5901164 + ... + 5918093.

It is an arithmetic number, because the mean of its divisors is an integer number (15016367289).

Almost surely, 2100050010505 is an apocalyptic number.

It is an amenable number.

100050010505 is a deficient number, since it is larger than the sum of its proper divisors (20080927807).

100050010505 is a wasteful number, since it uses less digits than its factorization.

100050010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820955.

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 100050010505 its reverse (505010050001), we get a palindrome (605060060506).

The spelling of 100050010505 in words is "one hundred billion, fifty million, ten thousand, five hundred five".

Divisors: 1 5 1693 8465 11819257 59096285 20010002101 100050010505