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100214481 = 3474391619
BaseRepresentation
bin1011111100100…
…10011011010001
320222120102102110
411332102123101
5201123330411
613535535533
72324544333
oct576223321
9228512373
10100214481
1151628694
122968a5a9
13179ba313
14d449453
158be82a6
hex5f926d1

100214481 has 16 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 65198928.

The previous prime is 100214461. The next prime is 100214489. The reversal of 100214481 is 184412001.

It is a happy number.

It is not a de Polignac number, because 100214481 - 27 = 100214353 is a prime.

It is a super-2 number, since 2×1002144812 = 20085884404198722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100214489) 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, 61090 + ... + 62708.

It is an arithmetic number, because the mean of its divisors is an integer number (8553600).

Almost surely, 2100214481 is an apocalyptic number.

It is an amenable number.

100214481 is a deficient number, since it is larger than the sum of its proper divisors (36643119).

100214481 is a wasteful number, since it uses less digits than its factorization.

100214481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 100214481 is about 10010.7183058959. The cubic root of 100214481 is about 464.4904906009.

Adding to 100214481 its reverse (184412001), we get a palindrome (284626482).

The spelling of 100214481 in words is "one hundred million, two hundred fourteen thousand, four hundred eighty-one".

Divisors: 1 3 47 141 439 1317 1619 4857 20633 61899 76093 228279 710741 2132223 33404827 100214481