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120140670 = 235131072879
BaseRepresentation
bin1110010100100…
…11001101111110
322101001210000110
413022103031332
5221224000140
615531010450
72656115226
oct712231576
9271053013
10120140670
11618a8511
1234299a26
131bb75c70
1411d55086
15a832380
hex729337e

120140670 has 64 divisors (see below), whose sum is σ = 313528320. Its totient is φ = 29286528.

The previous prime is 120140663. The next prime is 120140677. The reversal of 120140670 is 76041021.

It is an interprime number because it is at equal distance from previous prime (120140663) and next prime (120140677).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120140677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40291 + ... + 43169.

It is an arithmetic number, because the mean of its divisors is an integer number (4898880).

Almost surely, 2120140670 is an apocalyptic number.

120140670 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 120140670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156764160).

120140670 is an abundant number, since it is smaller than the sum of its proper divisors (193387650).

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

120140670 is a wasteful number, since it uses less digits than its factorization.

120140670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 120140670 is about 10960.8699472259. The cubic root of 120140670 is about 493.4350740777.

Adding to 120140670 its reverse (76041021), we get a palindrome (196181691).

The spelling of 120140670 in words is "one hundred twenty million, one hundred forty thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 107 130 195 214 321 390 535 642 1070 1391 1605 2782 2879 3210 4173 5758 6955 8346 8637 13910 14395 17274 20865 28790 37427 41730 43185 74854 86370 112281 187135 224562 308053 374270 561405 616106 924159 1122810 1540265 1848318 3080530 4004689 4620795 8009378 9241590 12014067 20023445 24028134 40046890 60070335 120140670