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121371884 = 2244967579
BaseRepresentation
bin1110011101111…
…11110011101100
322110101022220222
413032333303230
5222032400014
620013230512
73002433614
oct716776354
9273338828
10121371884
1162569547
1234792438
131c1b74aa
1412195a44
15a9c708e
hex73bfcec

121371884 has 12 divisors (see below), whose sum is σ = 212877000. Its totient is φ = 60549888.

The previous prime is 121371871. The next prime is 121371953. The reversal of 121371884 is 488173121.

It is a super-2 number, since 2×1213718842 = 29462268451418912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31994 + ... + 35585.

It is an arithmetic number, because the mean of its divisors is an integer number (17739750).

Almost surely, 2121371884 is an apocalyptic number.

It is an amenable number.

121371884 is a deficient number, since it is larger than the sum of its proper divisors (91505116).

121371884 is a wasteful number, since it uses less digits than its factorization.

121371884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68032 (or 68030 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 121371884 is about 11016.8908499631. The cubic root of 121371884 is about 495.1149398087.

The spelling of 121371884 in words is "one hundred twenty-one million, three hundred seventy-one thousand, eight hundred eighty-four".

Divisors: 1 2 4 449 898 1796 67579 135158 270316 30342971 60685942 121371884