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122523030 = 236575
BaseRepresentation
bin1110100110110…
…00110110010110
322112112211000000
413103120312112
5222331214110
620054032130
73015300000
oct723306626
9275484000
10122523030
1163185403
1235048646
131c4cb446
14123b5370
15ab531c0
hex74d8d96

122523030 has 168 divisors, whose sum is σ = 385767792. Its totient is φ = 28005264.

The previous prime is 122523019. The next prime is 122523041. The reversal of 122523030 is 30325221.

It is an interprime number because it is at equal distance from previous prime (122523019) and next prime (122523041).

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

It is a junction number, because it is equal to n+sod(n) for n = 122522994 and 122523012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 17503287 + ... + 17503293.

Almost surely, 2122523030 is an apocalyptic number.

122523030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122523030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192883896).

122523030 is an abundant number, since it is smaller than the sum of its proper divisors (263244762).

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

122523030 is an frugal number, since it uses more digits than its factorization.

122523030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 122523030 is about 11069.0121510458. The cubic root of 122523030 is about 496.6753152756.

Adding to 122523030 its reverse (30325221), we get a palindrome (152848251).

The spelling of 122523030 in words is "one hundred twenty-two million, five hundred twenty-three thousand, thirty".