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121214042 = 2151401371
BaseRepresentation
bin1110011100110…
…01010001011010
322110002022101222
413032121101122
5222012322132
620010012042
73001205465
oct716312132
9273068358
10121214042
11624709a4
1234717022
131c1606b1
14121542dc
15a995412
hex739945a

121214042 has 8 divisors (see below), whose sum is σ = 183025632. Its totient is φ = 60205500.

The previous prime is 121214017. The next prime is 121214069. The reversal of 121214042 is 240412121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121214042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200384 + ... + 200987.

It is an arithmetic number, because the mean of its divisors is an integer number (22878204).

Almost surely, 2121214042 is an apocalyptic number.

121214042 is a deficient number, since it is larger than the sum of its proper divisors (61811590).

121214042 is a wasteful number, since it uses less digits than its factorization.

121214042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401524.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 121214042 is about 11009.7248830295. The cubic root of 121214042 is about 494.9002172778.

Adding to 121214042 its reverse (240412121), we get a palindrome (361626163).

The spelling of 121214042 in words is "one hundred twenty-one million, two hundred fourteen thousand, forty-two".

Divisors: 1 2 151 302 401371 802742 60607021 121214042