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121383370 = 25411372161
BaseRepresentation
bin1110011110000…
…10100111001010
322110101220200101
413033002213022
5222033231440
620013400014
73002512243
oct717024712
9273356611
10121383370
1162577139
123479900a
131c1bc7a4
1412199cca
15a9ca69a
hex73c29ca

121383370 has 32 divisors (see below), whose sum is σ = 225557136. Its totient is φ = 47001600.

The previous prime is 121383359. The next prime is 121383371. The reversal of 121383370 is 73383121.

It can be written as a sum of positive squares in 8 ways, for example, as 32137561 + 89245809 = 5669^2 + 9447^2 .

It is not an unprimeable number, because it can be changed into a prime (121383371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55090 + ... + 57250.

Almost surely, 2121383370 is an apocalyptic number.

121383370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121383370 is a deficient number, since it is larger than the sum of its proper divisors (104173766).

121383370 is a wasteful number, since it uses less digits than its factorization.

121383370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 121383370 is about 11017.4121280816. The cubic root of 121383370 is about 495.1305576785.

The spelling of 121383370 in words is "one hundred twenty-one million, three hundred eighty-three thousand, three hundred seventy".

Divisors: 1 2 5 10 41 82 137 205 274 410 685 1370 2161 4322 5617 10805 11234 21610 28085 56170 88601 177202 296057 443005 592114 886010 1480285 2960570 12138337 24276674 60691685 121383370