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1481880 = 233553233
BaseRepresentation
bin101101001110010011000
32210021202110
411221302120
5334410010
651432320
715411231
oct5516230
92707673
101481880
119223a4
125b56a0
133cb66a
142a8088
151e4120
hex169c98

1481880 has 64 divisors (see below), whose sum is σ = 4548960. Its totient is φ = 386048.

The previous prime is 1481849. The next prime is 1481881. The reversal of 1481880 is 881841.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6244 + ... + 6476.

21481880 is an apocalyptic number.

1481880 is a gapful number since it is divisible by the number (10) 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 1481880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274480).

1481880 is an abundant number, since it is smaller than the sum of its proper divisors (3067080).

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

1481880 is a wasteful number, since it uses less digits than its factorization.

1481880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1481880 is about 1217.3249360791. The cubic root of 1481880 is about 114.0086173849.

The spelling of 1481880 in words is "one million, four hundred eighty-one thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 53 60 106 120 159 212 233 265 318 424 466 530 636 699 795 932 1060 1165 1272 1398 1590 1864 2120 2330 2796 3180 3495 4660 5592 6360 6990 9320 12349 13980 24698 27960 37047 49396 61745 74094 98792 123490 148188 185235 246980 296376 370470 493960 740940 1481880