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683881858370 = 251753149509413
BaseRepresentation
bin10011111001110101000…
…10010000010101000010
32102101012220100222002102
421330322202100111002
542201042223431440
61242100533350402
7100260141611654
oct11747242202502
92371186328072
10683881858370
1124403a531297
12b065a798402
134c64a08a929
14251587bc6d4
1512bc9026b15
hex9f3a890542

683881858370 has 64 divisors (see below), whose sum is σ = 1336906101600. Its totient is φ = 250907824128.

The previous prime is 683881858357. The next prime is 683881858411. The reversal of 683881858370 is 73858188386.

It can be written as a sum of positive squares in 16 ways, for example, as 124484069329 + 559397789041 = 352823^2 + 747929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 683881858297 and 683881858306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087784 + ... + 1597196.

Almost surely, 2683881858370 is an apocalyptic number.

683881858370 is a deficient number, since it is larger than the sum of its proper divisors (653024243230).

683881858370 is a wasteful number, since it uses less digits than its factorization.

683881858370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509639.

The product of its (nonzero) digits is 61931520, while the sum is 65.

The spelling of 683881858370 in words is "six hundred eighty-three billion, eight hundred eighty-one million, eight hundred fifty-eight thousand, three hundred seventy".

Divisors: 1 2 5 10 17 34 53 85 106 149 170 265 298 530 745 901 1490 1802 2533 4505 5066 7897 9010 12665 15794 25330 39485 78970 134249 268498 509413 671245 1018826 1342490 2547065 5094130 8660021 17320042 26998889 43300105 53997778 75902537 86600210 134994445 151805074 269988890 379512685 458981113 759025370 917962226 1290343129 2294905565 2580686258 4022834461 4589811130 6451715645 8045668922 12903431290 20114172305 40228344610 68388185837 136776371674 341940929185 683881858370