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2790480 = 2435711151
BaseRepresentation
bin1010101001010001010000
312020202211010
422221101100
51203243410
6135450520
732501340
oct12512120
95222733
102790480
111636590
12b26a40
13769194
14528d20
153a1c20
hex2a9450

2790480 has 160 divisors (see below), whose sum is σ = 10856448. Its totient is φ = 576000.

The previous prime is 2790479. The next prime is 2790481. The reversal of 2790480 is 840972.

2790480 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2790479) and next prime (2790481).

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 (2790481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18405 + ... + 18555.

22790480 is an apocalyptic number.

2790480 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 2790480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5428224).

2790480 is an abundant number, since it is smaller than the sum of its proper divisors (8065968).

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

2790480 is a wasteful number, since it uses less digits than its factorization.

2790480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2790480 is about 1670.4729869112. The cubic root of 2790480 is about 140.7860544900.

The spelling of 2790480 in words is "two million, seven hundred ninety thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 105 110 112 120 132 140 151 154 165 168 176 210 220 231 240 264 280 302 308 330 336 385 420 440 453 462 528 560 604 616 660 755 770 840 880 906 924 1057 1155 1208 1232 1320 1510 1540 1661 1680 1812 1848 2114 2265 2310 2416 2640 3020 3080 3171 3322 3624 3696 4228 4530 4620 4983 5285 6040 6160 6342 6644 7248 8305 8456 9060 9240 9966 10570 11627 12080 12684 13288 15855 16610 16912 18120 18480 19932 21140 23254 24915 25368 26576 31710 33220 34881 36240 39864 42280 46508 49830 50736 58135 63420 66440 69762 79728 84560 93016 99660 116270 126840 132880 139524 174405 186032 199320 232540 253680 279048 348810 398640 465080 558096 697620 930160 1395240 2790480