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121039707 = 3291391261
BaseRepresentation
bin1110011011011…
…10101101011011
322102202110021010
413031232231123
5221441232312
620002145003
72666551305
oct715565533
9272673233
10121039707
1162361a18
1234652163
131c0cc239
141210a975
15a95d93c
hex736eb5b

121039707 has 8 divisors (see below), whose sum is σ = 166951440. Its totient is φ = 77910560.

The previous prime is 121039687. The next prime is 121039727. The reversal of 121039707 is 707930121.

It is an interprime number because it is at equal distance from previous prime (121039687) and next prime (121039727).

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

It is a cyclic number.

It is not a de Polignac number, because 121039707 - 212 = 121035611 is a prime.

It is a super-2 number, since 2×1210397072 = 29301221341291698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121039727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695544 + ... + 695717.

It is an arithmetic number, because the mean of its divisors is an integer number (20868930).

Almost surely, 2121039707 is an apocalyptic number.

121039707 is a deficient number, since it is larger than the sum of its proper divisors (45911733).

121039707 is a wasteful number, since it uses less digits than its factorization.

121039707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391293.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 121039707 is about 11001.8047155910. The cubic root of 121039707 is about 494.6628415192.

Adding to 121039707 its reverse (707930121), we get a palindrome (828969828).

The spelling of 121039707 in words is "one hundred twenty-one million, thirty-nine thousand, seven hundred seven".

Divisors: 1 3 29 87 1391261 4173783 40346569 121039707