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155106155454 = 231922319793083
BaseRepresentation
bin1001000001110100001…
…1000001101110111110
3112211100121121002100020
42100131003001232332
510020124133433304
6155131011113010
714130450365565
oct2203503015676
9484317532306
10155106155454
115a864421338
12260888a2766
131181b3c8513
1477159a6bdc
15407c0045d9
hex241d0c1bbe

155106155454 has 64 divisors (see below), whose sum is σ = 328275763200. Its totient is φ = 48720798432.

The previous prime is 155106155431. The next prime is 155106155459. The reversal of 155106155454 is 454551601551.

It is a super-2 number, since 2×1551061554542 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155106155459) 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, 50308597 + ... + 50311679.

It is an arithmetic number, because the mean of its divisors is an integer number (5129308800).

Almost surely, 2155106155454 is an apocalyptic number.

155106155454 is an abundant number, since it is smaller than the sum of its proper divisors (173169607746).

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

155106155454 is a wasteful number, since it uses less digits than its factorization.

155106155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 155106155454 in words is "one hundred fifty-five billion, one hundred six million, one hundred fifty-five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 223 446 669 1338 1979 3083 3958 4237 5937 6166 8474 9249 11874 12711 18498 25422 37601 58577 75202 112803 117154 175731 225606 351462 441317 687509 882634 1323951 1375018 2062527 2647902 4125054 6101257 8385023 12202514 13062671 16770046 18303771 25155069 26125342 36607542 39188013 50310138 78376026 115923883 231847766 347771649 695543298 1360580311 2721160622 4081740933 8163481866 25851025909 51702051818 77553077727 155106155454