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101378680 = 235131931331
BaseRepresentation
bin1100000101011…
…10101001111000
321001202120101221
412002232221320
5201423104210
614020521424
72340463444
oct602565170
9231676357
10101378680
1152253337
1229b50274
13180071b0
14d66d824
158d781da
hex60aea78

101378680 has 128 divisors (see below), whose sum is σ = 267724800. Its totient is φ = 34214400.

The previous prime is 101378657. The next prime is 101378681. The reversal of 101378680 is 86873101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101378681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306115 + ... + 306445.

It is an arithmetic number, because the mean of its divisors is an integer number (2091600).

Almost surely, 2101378680 is an apocalyptic number.

101378680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101378680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133862400).

101378680 is an abundant number, since it is smaller than the sum of its proper divisors (166346120).

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

101378680 is a wasteful number, since it uses less digits than its factorization.

101378680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 101378680 is about 10068.6980290403. The cubic root of 101378680 is about 466.2822435037.

The spelling of 101378680 in words is "one hundred one million, three hundred seventy-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 19 20 26 31 38 40 52 62 65 76 95 104 124 130 152 155 190 247 248 260 310 331 380 403 494 520 589 620 662 760 806 988 1178 1235 1240 1324 1612 1655 1976 2015 2356 2470 2648 2945 3224 3310 4030 4303 4712 4940 5890 6289 6620 7657 8060 8606 9880 10261 11780 12578 13240 15314 16120 17212 20522 21515 23560 25156 30628 31445 34424 38285 41044 43030 50312 51305 61256 62890 76570 81757 82088 86060 102610 125780 133393 153140 163514 172120 194959 205220 251560 266786 306280 327028 389918 408785 410440 533572 654056 666965 779836 817570 974795 1067144 1333930 1559672 1635140 1949590 2534467 2667860 3270280 3899180 5068934 5335720 7798360 10137868 12672335 20275736 25344670 50689340 101378680