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55254430 = 2571173983
BaseRepresentation
bin1101001011000…
…1110110011110
310211222012211101
43102301312132
5103121120210
65252143314
71240440430
oct322616636
9124865741
1055254430
112920a520
1216607b3a
13b5a7c3a
1474a4650
154cb6a3a
hex34b1d9e

55254430 has 64 divisors (see below), whose sum is σ = 125826048. Its totient is φ = 16968960.

The previous prime is 55254391. The next prime is 55254443. The reversal of 55254430 is 3445255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55719 + ... + 56701.

It is an arithmetic number, because the mean of its divisors is an integer number (1966032).

Almost surely, 255254430 is an apocalyptic number.

55254430 is an abundant number, since it is smaller than the sum of its proper divisors (70571618).

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

55254430 is a wasteful number, since it uses less digits than its factorization.

55254430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55254430 is about 7433.3323617339. The cubic root of 55254430 is about 380.8807594100.

Adding to 55254430 its reverse (3445255), we get a palindrome (58699685).

The spelling of 55254430 in words is "fifty-five million, two hundred fifty-four thousand, four hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 73 77 110 146 154 365 385 511 730 770 803 983 1022 1606 1966 2555 4015 4915 5110 5621 6881 8030 9830 10813 11242 13762 21626 28105 34405 54065 56210 68810 71759 75691 108130 143518 151382 358795 378455 502313 717590 756910 789349 1004626 1578698 2511565 3946745 5023130 5525443 7893490 11050886 27627215 55254430