Search a number
-
+
315454620 = 223513404429
BaseRepresentation
bin10010110011010…
…111010010011100
3210222120202101110
4102303113102130
51121224021440
651145142020
710550214525
oct2263272234
9728522343
10315454620
1115207a7a8
128978a910
135047c350
142dc7784c
151ca63080
hex12cd749c

315454620 has 48 divisors (see below), whose sum is σ = 951219360. Its totient is φ = 77650176.

The previous prime is 315454619. The next prime is 315454627. The reversal of 315454620 is 26454513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315454627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201435 + ... + 202994.

It is an arithmetic number, because the mean of its divisors is an integer number (19817070).

Almost surely, 2315454620 is an apocalyptic number.

315454620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315454620 is an abundant number, since it is smaller than the sum of its proper divisors (635764740).

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

315454620 is a wasteful number, since it uses less digits than its factorization.

315454620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404454 (or 404452 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 315454620 is about 17761.0421991504. The cubic root of 315454620 is about 680.7363850809.

The spelling of 315454620 in words is "three hundred fifteen million, four hundred fifty-four thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 404429 808858 1213287 1617716 2022145 2426574 4044290 4853148 5257577 6066435 8088580 10515154 12132870 15772731 21030308 24265740 26287885 31545462 52575770 63090924 78863655 105151540 157727310 315454620