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452231020 = 225372392557
BaseRepresentation
bin11010111101000…
…111111101101100
31011111221201100001
4122331013331230
51411232343040
6112512514044
714130620533
oct3275077554
91144851301
10452231020
112122aa94a
1210754b924
13728cb327
14440bd31a
1529a7e59a
hex1af47f6c

452231020 has 48 divisors (see below), whose sum is σ = 979816320. Its totient is φ = 175198464.

The previous prime is 452230993. The next prime is 452231023. The reversal of 452231020 is 20132254.

It is not an unprimeable number, because it can be changed into a prime (452231023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175582 + ... + 178138.

It is an arithmetic number, because the mean of its divisors is an integer number (20412840).

Almost surely, 2452231020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489908160).

452231020 is an abundant number, since it is smaller than the sum of its proper divisors (527585300).

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

452231020 is a wasteful number, since it uses less digits than its factorization.

452231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 452231020 is about 21265.7240647950. The cubic root of 452231020 is about 767.5737539071.

Adding to 452231020 its reverse (20132254), we get a palindrome (472363274).

The spelling of 452231020 in words is "four hundred fifty-two million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 239 370 478 740 956 1195 2390 2557 4780 5114 8843 10228 12785 17686 25570 35372 44215 51140 88430 94609 176860 189218 378436 473045 611123 946090 1222246 1892180 2444492 3055615 6111230 12222460 22611551 45223102 90446204 113057755 226115510 452231020