Search a number
-
+
90900295000 = 235418180059
BaseRepresentation
bin101010010101000010…
…1000110110101011000
322200121222221102200121
41110222011012311120
52442130433420000
6105431540443024
76365410521214
oct1245205066530
9280558842617
1090900295000
1135606935049
121574a3a9474
1387584c0008
1445846d3944
152570415b1a
hex152a146d58

90900295000 has 40 divisors (see below), whose sum is σ = 212979402900. Its totient is φ = 36360116000.

The previous prime is 90900294967. The next prime is 90900295051. The reversal of 90900295000 is 59200909.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9085030 + ... + 9095029.

Almost surely, 290900295000 is an apocalyptic number.

It is an amenable number.

90900295000 is an abundant number, since it is smaller than the sum of its proper divisors (122079107900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90900295000 is a wasteful number, since it uses less digits than its factorization.

90900295000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18180085 (or 18180066 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

Adding to 90900295000 its reverse (59200909), we get a palindrome (90959495909).

The spelling of 90900295000 in words is "ninety billion, nine hundred million, two hundred ninety-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 5000 18180059 36360118 72720236 90900295 145440472 181800590 363601180 454501475 727202360 909002950 1818005900 2272507375 3636011800 4545014750 9090029500 11362536875 18180059000 22725073750 45450147500 90900295000