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381214515507 = 3743618977761
BaseRepresentation
bin1011000110000100010…
…01111110000100110011
31100102222111100212210220
411203002021332010303
522221211403444012
6451043314024123
736353564626440
oct5430211760463
91312874325726
10381214515507
11137743723901
1261a6bb78043
1329c4376ab47
14146453089c7
159db25d408c
hex58c227e133

381214515507 has 64 divisors (see below), whose sum is σ = 610948039680. Its totient is φ = 206928691200.

The previous prime is 381214515497. The next prime is 381214515569. The reversal of 381214515507 is 705515412183.

It is not a de Polignac number, because 381214515507 - 27 = 381214515379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381214515707) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4863507 + ... + 4941267.

It is an arithmetic number, because the mean of its divisors is an integer number (9546063120).

Almost surely, 2381214515507 is an apocalyptic number.

381214515507 is a deficient number, since it is larger than the sum of its proper divisors (229733524173).

381214515507 is a wasteful number, since it uses less digits than its factorization.

381214515507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77964.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 381214515507 in words is "three hundred eighty-one billion, two hundred fourteen million, five hundred fifteen thousand, five hundred seven".

Divisors: 1 3 7 21 43 61 89 129 183 267 301 427 623 903 1281 1869 2623 3827 5429 7869 11481 16287 18361 26789 38003 55083 77761 80367 114009 233283 233447 544327 700341 1632981 1634129 3343723 4743421 4902387 6920729 10031169 14230263 20762187 23406061 33203947 48445103 70218183 99611841 145335309 203967103 297591347 422164469 611901309 892774041 1266493407 1427769721 2083139429 2955151283 4283309163 6249418287 8865453849 18153072167 54459216501 127071505169 381214515507