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470457945 = 32553197257
BaseRepresentation
bin11100000010101…
…001111001011001
31012210020201222100
4130002221321121
51430414123240
6114403314013
714441553336
oct3402517131
91183221870
10470457945
1122161a021
1211167b909
13766106a9
14466a598d
152b47ee30
hex1c0a9e59

470457945 has 24 divisors (see below), whose sum is σ = 830850696. Its totient is φ = 246175488.

The previous prime is 470457943. The next prime is 470457947. The reversal of 470457945 is 549754074.

470457945 is a `hidden beast` number, since 4 + 70 + 4 + 579 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (470457943) and next prime (470457947).

It can be written as a sum of positive squares in 4 ways, for example, as 244015641 + 226442304 = 15621^2 + 15048^2 .

It is not a de Polignac number, because 470457945 - 21 = 470457943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 470457945.

It is not an unprimeable number, because it can be changed into a prime (470457943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96244 + ... + 101013.

It is an arithmetic number, because the mean of its divisors is an integer number (34618779).

Almost surely, 2470457945 is an apocalyptic number.

470457945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

470457945 is a deficient number, since it is larger than the sum of its proper divisors (360392751).

470457945 is a wasteful number, since it uses less digits than its factorization.

470457945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197321 (or 197318 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 470457945 is about 21690.0425310786. The cubic root of 470457945 is about 777.7504464356.

The spelling of 470457945 in words is "four hundred seventy million, four hundred fifty-seven thousand, nine hundred forty-five".

Divisors: 1 3 5 9 15 45 53 159 265 477 795 2385 197257 591771 986285 1775313 2958855 8876565 10454621 31363863 52273105 94091589 156819315 470457945