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2164708 = 2271319313
BaseRepresentation
bin1000010000011111100100
311001222102101
420100133210
51023232313
6114221444
724254050
oct10203744
94058371
102164708
111249417
12884884
135aa3c0
14404c60
152cb5dd
hex2107e4

2164708 has 48 divisors (see below), whose sum is σ = 4923520. Its totient is φ = 808704.

The previous prime is 2164681. The next prime is 2164739. The reversal of 2164708 is 8074612.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6760 + ... + 7072.

22164708 is an apocalyptic number.

2164708 is a gapful number since it is divisible by the number (28) 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 2164708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461760).

2164708 is an abundant number, since it is smaller than the sum of its proper divisors (2758812).

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

2164708 is a wasteful number, since it uses less digits than its factorization.

2164708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2164708 is about 1471.2946679710. The cubic root of 2164708 is about 129.3599306431.

The spelling of 2164708 in words is "two million, one hundred sixty-four thousand, seven hundred eight".

Divisors: 1 2 4 7 13 14 19 26 28 38 52 76 91 133 182 247 266 313 364 494 532 626 988 1252 1729 2191 3458 4069 4382 5947 6916 8138 8764 11894 16276 23788 28483 41629 56966 77311 83258 113932 154622 166516 309244 541177 1082354 2164708