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481220872 = 23112563883
BaseRepresentation
bin11100101011101…
…101100100001000
31020112111112221021
4130223231210020
51441143031442
6115430122224
714632211206
oct3453554410
91215445837
10481220872
11227700400
121151b0374
137890b5a2
1447ca8076
152c3a8e67
hex1caed908

481220872 has 48 divisors (see below), whose sum is σ = 994659120. Its totient is φ = 218100960.

The previous prime is 481220833. The next prime is 481220879. The reversal of 481220872 is 278022184.

It is not an unprimeable number, because it can be changed into a prime (481220879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544543 + ... + 545425.

It is an arithmetic number, because the mean of its divisors is an integer number (20722065).

Almost surely, 2481220872 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 481220872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497329560).

481220872 is an abundant number, since it is smaller than the sum of its proper divisors (513438248).

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

481220872 is a wasteful number, since it uses less digits than its factorization.

481220872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 481220872 is about 21936.7470697002. The cubic root of 481220872 is about 783.6367929235.

The spelling of 481220872 in words is "four hundred eighty-one million, two hundred twenty thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 121 242 484 563 883 968 1126 1766 2252 3532 4504 6193 7064 9713 12386 19426 24772 38852 49544 68123 77704 106843 136246 213686 272492 427372 497129 544984 854744 994258 1988516 3977032 5468419 10936838 21873676 43747352 60152609 120305218 240610436 481220872