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2505749472 = 253316971709
BaseRepresentation
bin1001010101011010…
…1011001111100000
320110122000021002000
42111112223033200
520112432440342
61052350524000
7116044343022
oct22526531740
96418007060
102505749472
111076480736
1259b206600
1330c1933c5
1419ab0a012
15e9eb444c
hex955ab3e0

2505749472 has 96 divisors (see below), whose sum is σ = 7317021600. Its totient is φ = 834269184.

The previous prime is 2505749453. The next prime is 2505749489. The reversal of 2505749472 is 2749475052.

2505749472 is a `hidden beast` number, since 2 + 5 + 0 + 574 + 9 + 4 + 72 = 666.

2505749472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465354 + ... + 1467062.

It is an arithmetic number, because the mean of its divisors is an integer number (76218975).

Almost surely, 22505749472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2505749472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658510800).

2505749472 is an abundant number, since it is smaller than the sum of its proper divisors (4811272128).

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

2505749472 is a wasteful number, since it uses less digits than its factorization.

2505749472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3411 counting only the distinct ones).

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

The square root of 2505749472 is about 50057.4617015286. The cubic root of 2505749472 is about 1358.2484429298.

It can be divided in two parts, 25057 and 49472, that added together give a square (74529 = 2732).

The spelling of 2505749472 in words is "two billion, five hundred five million, seven hundred forty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 1697 1709 3394 3418 5091 5127 6788 6836 10182 10254 13576 13672 15273 15381 20364 20508 27152 27344 30546 30762 40728 41016 45819 46143 54304 54688 61092 61524 81456 82032 91638 92286 122184 123048 162912 164064 183276 184572 244368 246096 366552 369144 488736 492192 733104 738288 1466208 1476576 2900173 5800346 8700519 11600692 17401038 23201384 26101557 34802076 46402768 52203114 69604152 78304671 92805536 104406228 139208304 156609342 208812456 278416608 313218684 417624912 626437368 835249824 1252874736 2505749472