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745755650140 = 2251715181117911
BaseRepresentation
bin10101101101000101000…
…00000010100001011100
32122021220222211020220211
422312202200002201130
544204301421301030
61330332335422204
7104610343302304
oct12664240024134
92567828736824
10745755650140
11268300693896
12100648084964
135542aaa3537
1428148076604
15145eb00c12a
hexada280285c

745755650140 has 96 divisors (see below), whose sum is σ = 1671342640128. Its totient is φ = 278536320000.

The previous prime is 745755650137. The next prime is 745755650141. The reversal of 745755650140 is 41056557547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745755650141) 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, 41627785 + ... + 41645695.

It is an arithmetic number, because the mean of its divisors is an integer number (17409819168).

Almost surely, 2745755650140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745755650140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835671320064).

745755650140 is an abundant number, since it is smaller than the sum of its proper divisors (925586989988).

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

745755650140 is a wasteful number, since it uses less digits than its factorization.

745755650140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18899 (or 18897 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 745755650140 in words is "seven hundred forty-five billion, seven hundred fifty-five million, six hundred fifty thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 151 170 302 340 604 755 811 1510 1622 2567 3020 3244 4055 5134 8110 10268 12835 13787 16220 17911 25670 27574 35822 51340 55148 68935 71644 89555 122461 137870 179110 244922 275740 304487 358220 489844 608974 612305 1217948 1224610 1522435 2081837 2449220 2704561 3044870 4163674 5409122 6089740 8327348 10409185 10818244 13522805 14525821 20818370 27045610 29051642 41636740 45977537 54091220 58103284 72629105 91955074 145258210 183910148 229887685 246938957 290516420 459775370 493877914 919550740 987755828 1234694785 2193398971 2469389570 4386797942 4938779140 8773595884 10966994855 21933989710 37287782507 43867979420 74575565014 149151130028 186438912535 372877825070 745755650140