Search a number
-
+
274142660 = 225111246103
BaseRepresentation
bin10000010101110…
…001010111000100
3201002211220000212
4100111301113010
51030140031120
643111454552
76536113511
oct2025612704
9632756025
10274142660
11130823490
1277987458
1344a465bc
14285a2308
15191026c5
hex105715c4

274142660 has 24 divisors (see below), whose sum is σ = 628036416. Its totient is φ = 99688160.

The previous prime is 274142653. The next prime is 274142669. The reversal of 274142660 is 66241472.

It is not an unprimeable number, because it can be changed into a prime (274142669) 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, 622832 + ... + 623271.

It is an arithmetic number, because the mean of its divisors is an integer number (26168184).

Almost surely, 2274142660 is an apocalyptic number.

274142660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274142660 is an abundant number, since it is smaller than the sum of its proper divisors (353893756).

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

274142660 is a wasteful number, since it uses less digits than its factorization.

274142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246123 (or 1246121 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 274142660 is about 16557.2539993805. The cubic root of 274142660 is about 649.6192326129.

The spelling of 274142660 in words is "two hundred seventy-four million, one hundred forty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1246103 2492206 4984412 6230515 12461030 13707133 24922060 27414266 54828532 68535665 137071330 274142660