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2027680 = 255192329
BaseRepresentation
bin111101111000010100000
310211000110021
413233002200
51004341210
6111243224
723143414
oct7570240
93730407
102027680
111165476
12819514
1355cc15
143aad44
152a0bda
hex1ef0a0

2027680 has 96 divisors (see below), whose sum is σ = 5443200. Its totient is φ = 709632.

The previous prime is 2027677. The next prime is 2027681. The reversal of 2027680 is 867202.

It is a super-2 number, since 2×20276802 = 8222972364800, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2027681) 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, 69906 + ... + 69934.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

22027680 is an apocalyptic number.

2027680 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 2027680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2721600).

2027680 is an abundant number, since it is smaller than the sum of its proper divisors (3415520).

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

2027680 is a wasteful number, since it uses less digits than its factorization.

2027680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2027680 is about 1423.9662917359. The cubic root of 2027680 is about 126.5706875260.

The spelling of 2027680 in words is "two million, twenty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 23 29 32 38 40 46 58 76 80 92 95 115 116 145 152 160 184 190 230 232 290 304 368 380 437 460 464 551 580 608 667 736 760 874 920 928 1102 1160 1334 1520 1748 1840 2185 2204 2320 2668 2755 3040 3335 3496 3680 4370 4408 4640 5336 5510 6670 6992 8740 8816 10672 11020 12673 13340 13984 17480 17632 21344 22040 25346 26680 34960 44080 50692 53360 63365 69920 88160 101384 106720 126730 202768 253460 405536 506920 1013840 2027680