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121214752 = 253787961
BaseRepresentation
bin1110011100110…
…01011100100000
322110002100101021
413032121130200
5222012333002
620010015224
73001210531
oct716313440
9273070337
10121214752
116247148a
1234717514
131c160b09
1412154688
15a995737
hex7399720

121214752 has 12 divisors (see below), whose sum is σ = 238641606. Its totient is φ = 60607360.

The previous prime is 121214749. The next prime is 121214767. The reversal of 121214752 is 257412121.

It can be written as a sum of positive squares in only one way, i.e., 121088016 + 126736 = 11004^2 + 356^2 .

It is a super-2 number, since 2×1212147522 = 29386032204843008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1893949 + ... + 1894012.

Almost surely, 2121214752 is an apocalyptic number.

It is an amenable number.

121214752 is a deficient number, since it is larger than the sum of its proper divisors (117426854).

121214752 is an equidigital number, since it uses as much as digits as its factorization.

121214752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787971 (or 3787963 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 121214752 is about 11009.7571272031. The cubic root of 121214752 is about 494.9011835532.

Adding to 121214752 its reverse (257412121), we get a palindrome (378626873).

The spelling of 121214752 in words is "one hundred twenty-one million, two hundred fourteen thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 3787961 7575922 15151844 30303688 60607376 121214752