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2255502400 = 26521499461
BaseRepresentation
bin1000011001110000…
…0011110001000000
312211012010101121221
42012130003301000
514104402034100
61011451124424
7106615311514
oct20634036100
95735111557
102255502400
11a58199378
1252b443714
1329c395408
141757a8144
15d303201a
hex86703c40

2255502400 has 84 divisors (see below), whose sum is σ = 5587784100. Its totient is φ = 896051200.

The previous prime is 2255502391. The next prime is 2255502401. The reversal of 2255502400 is 42055522.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 114404416 + 2141097984 = 10696^2 + 46272^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255502401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233670 + ... + 243130.

Almost surely, 22255502400 is an apocalyptic number.

2255502400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255502400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2793892050).

2255502400 is an abundant number, since it is smaller than the sum of its proper divisors (3332281700).

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

2255502400 is a wasteful number, since it uses less digits than its factorization.

2255502400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9632 (or 9617 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2255502400 is about 47492.1298743276. The cubic root of 2255502400 is about 1311.4380029071.

Adding to 2255502400 its reverse (42055522), we get a palindrome (2297557922).

The spelling of 2255502400 in words is "two billion, two hundred fifty-five million, five hundred two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 149 160 200 298 320 400 596 745 800 1192 1490 1600 2384 2980 3725 4768 5960 7450 9461 9536 11920 14900 18922 23840 29800 37844 47305 47680 59600 75688 94610 119200 151376 189220 236525 238400 302752 378440 473050 605504 756880 946100 1409689 1513760 1892200 2819378 3027520 3784400 5638756 7048445 7568800 11277512 14096890 15137600 22555024 28193780 35242225 45110048 56387560 70484450 90220096 112775120 140968900 225550240 281937800 451100480 563875600 1127751200 2255502400