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1078480 = 245131761
BaseRepresentation
bin100000111010011010000
32000210101201
410013103100
5234002410
635040544
712111154
oct4072320
92023351
101078480
11677307
12440154
132b9b70
14201064
1516483a
hex1074d0

1078480 has 80 divisors (see below), whose sum is σ = 2906064. Its totient is φ = 368640.

The previous prime is 1078471. The next prime is 1078489. The reversal of 1078480 is 848701.

1078480 = T253 + T254 + ... + T282.

It is an interprime number because it is at equal distance from previous prime (1078471) and next prime (1078489).

It can be written as a sum of positive squares in 8 ways, for example, as 179776 + 898704 = 424^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10784802 = 2326238220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078489) 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, 17650 + ... + 17710.

21078480 is an apocalyptic number.

1078480 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 1078480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1453032).

1078480 is an abundant number, since it is smaller than the sum of its proper divisors (1827584).

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

1078480 is a wasteful number, since it uses less digits than its factorization.

1078480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1078480 is about 1038.4989167062. The cubic root of 1078480 is about 102.5504015459.

The spelling of 1078480 in words is "one million, seventy-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 34 40 52 61 65 68 80 85 104 122 130 136 170 208 221 244 260 272 305 340 442 488 520 610 680 793 884 976 1037 1040 1105 1220 1360 1586 1768 2074 2210 2440 3172 3536 3965 4148 4420 4880 5185 6344 7930 8296 8840 10370 12688 13481 15860 16592 17680 20740 26962 31720 41480 53924 63440 67405 82960 107848 134810 215696 269620 539240 1078480