Search a number
-
+
1988498108004 = 2232926321726521
BaseRepresentation
bin11100111011111011101…
…110010010111001100100
321001002122212000012100020
4130323323232102321210
5230034421003424004
64121300423315140
7263443560015162
oct34737356227144
97032585005306
101988498108004
116a7354384121
12281473babab0
1311568c671715
146c35b094232
1536ad334e8d9
hex1cefbb92e64

1988498108004 has 48 divisors (see below), whose sum is σ = 4818073518720. Its totient is φ = 637543002880.

The previous prime is 1988498107961. The next prime is 1988498108057. The reversal of 1988498108004 is 4008018948891.

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, 10771737 + ... + 10954784.

It is an arithmetic number, because the mean of its divisors is an integer number (100376531640).

Almost surely, 21988498108004 is an apocalyptic number.

It is an amenable number.

1988498108004 is an abundant number, since it is smaller than the sum of its proper divisors (2829575410716).

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

1988498108004 is a wasteful number, since it uses less digits than its factorization.

1988498108004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21726820 (or 21726818 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 60.

The spelling of 1988498108004 in words is "one trillion, nine hundred eighty-eight billion, four hundred ninety-eight million, one hundred eight thousand, four".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 263 348 526 789 1052 1578 3156 7627 15254 22881 30508 45762 91524 21726521 43453042 65179563 86906084 130359126 260718252 630069109 1260138218 1890207327 2520276436 3780414654 5714075023 7560829308 11428150046 17142225069 22856300092 34284450138 68568900276 165708175667 331416351334 497124527001 662832702668 994249054002 1988498108004