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122312106 = 2357157229
BaseRepresentation
bin1110100101001…
…01010110101010
322112011002200000
413102211112222
5222302441411
620045323430
73013431030
oct722452652
9275132600
10122312106
1163050994
1234b66576
131c456437
141235c550
15ab10956
hex74a55aa

122312106 has 96 divisors (see below), whose sum is σ = 317466240. Its totient is φ = 34572096.

The previous prime is 122312089. The next prime is 122312123. The reversal of 122312106 is 601213221.

It is an interprime number because it is at equal distance from previous prime (122312089) and next prime (122312123).

It is a super-3 number, since 3×1223121063 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534000 + ... + 534228.

It is an arithmetic number, because the mean of its divisors is an integer number (3306940).

Almost surely, 2122312106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122312106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158733120).

122312106 is an abundant number, since it is smaller than the sum of its proper divisors (195154134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122312106 is a wasteful number, since it uses less digits than its factorization.

122312106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 122312106 is about 11059.4803675399. The cubic root of 122312106 is about 496.3901419028.

Adding to 122312106 its reverse (601213221), we get a palindrome (723525327).

The spelling of 122312106 in words is "one hundred twenty-two million, three hundred twelve thousand, one hundred six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 157 162 189 229 243 314 378 458 471 486 567 687 942 1099 1134 1374 1413 1603 1701 2061 2198 2826 3206 3297 3402 4122 4239 4809 6183 6594 8478 9618 9891 12366 12717 14427 18549 19782 25434 28854 29673 35953 37098 38151 43281 55647 59346 71906 76302 86562 89019 107859 111294 129843 178038 215718 251671 259686 267057 323577 389529 503342 534114 647154 755013 779058 970731 1510026 1941462 2265039 2912193 4530078 5824386 6795117 8736579 13590234 17473158 20385351 40770702 61156053 122312106