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121254141 = 3109336979
BaseRepresentation
bin1110011101000…
…11000011111101
322110011100102010
413032203003331
5222020113031
620010521433
73001433421
oct716430375
9273140363
10121254141
1162499038
1234736279
131c175a18
1412164b81
15a9a2246
hex73a30fd

121254141 has 8 divisors (see below), whose sum is σ = 161824480. Its totient is φ = 80759952.

The previous prime is 121254131. The next prime is 121254151. The reversal of 121254141 is 141452121.

It is an interprime number because it is at equal distance from previous prime (121254131) and next prime (121254151).

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

It is a de Polignac number, because none of the positive numbers 2k-121254141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121254101) 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, 15211 + ... + 21768.

It is an arithmetic number, because the mean of its divisors is an integer number (20228060).

Almost surely, 2121254141 is an apocalyptic number.

It is an amenable number.

121254141 is a deficient number, since it is larger than the sum of its proper divisors (40570339).

121254141 is a wasteful number, since it uses less digits than its factorization.

121254141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38075.

The product of its digits is 320, while the sum is 21.

The square root of 121254141 is about 11011.5458042911. The cubic root of 121254141 is about 494.9547841568.

The spelling of 121254141 in words is "one hundred twenty-one million, two hundred fifty-four thousand, one hundred forty-one".

Divisors: 1 3 1093 3279 36979 110937 40418047 121254141