Search a number
-
+
457152020 = 225133747521
BaseRepresentation
bin11011001111111…
…001011000010100
31011212012201200022
4123033321120110
51414012331040
6113210204312
714220504503
oct3317713024
91155181608
10457152020
11215061096
12109123698
1373932170
1444a0083a
152a2026b5
hex1b3f9614

457152020 has 48 divisors (see below), whose sum is σ = 1061831568. Its totient is φ = 164229120.

The previous prime is 457152011. The next prime is 457152029. The reversal of 457152020 is 20251754.

It is an interprime number because it is at equal distance from previous prime (457152011) and next prime (457152029).

It can be written as a sum of positive squares in 8 ways, for example, as 15984004 + 441168016 = 3998^2 + 21004^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457152029) 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, 14141 + ... + 33380.

It is an arithmetic number, because the mean of its divisors is an integer number (22121491).

Almost surely, 2457152020 is an apocalyptic number.

It is an amenable number.

457152020 is an abundant number, since it is smaller than the sum of its proper divisors (604679548).

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

457152020 is a wasteful number, since it uses less digits than its factorization.

457152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47580 (or 47578 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 457152020 is about 21381.1136286209. The cubic root of 457152020 is about 770.3478610395.

The spelling of 457152020 in words is "four hundred fifty-seven million, one hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1924 2405 4810 9620 47521 95042 190084 237605 475210 617773 950420 1235546 1758277 2471092 3088865 3516554 6177730 7033108 8791385 12355460 17582770 22857601 35165540 45715202 91430404 114288005 228576010 457152020