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401225446460 = 22522788375649
BaseRepresentation
bin1011101011010101110…
…01100111010000111100
31102100122002110111111202
411311222321213100330
523033202203241320
6504153113435032
740662512011136
oct5655271472074
91370562414452
10401225446460
11145182339473
126591570ba78
132bab24a1ca7
14155c2c38056
15a6842adb75
hex5d6ae6743c

401225446460 has 24 divisors (see below), whose sum is σ = 846285224400. Its totient is φ = 159783171584.

The previous prime is 401225446451. The next prime is 401225446477. The reversal of 401225446460 is 64644522104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44183285 + ... + 44192364.

It is an arithmetic number, because the mean of its divisors is an integer number (35261884350).

Almost surely, 2401225446460 is an apocalyptic number.

It is an amenable number.

401225446460 is an abundant number, since it is smaller than the sum of its proper divisors (445059777940).

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

401225446460 is a wasteful number, since it uses less digits than its factorization.

401225446460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88375885 (or 88375883 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 401225446460 its reverse (64644522104), we get a palindrome (465869968564).

The spelling of 401225446460 in words is "four hundred one billion, two hundred twenty-five million, four hundred forty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 227 454 908 1135 2270 4540 88375649 176751298 353502596 441878245 883756490 1767512980 20061272323 40122544646 80245089292 100306361615 200612723230 401225446460